diff --git a/IDE/ChoixAction.cpp b/IDE/ChoixAction.cpp
index fd391aeaa3..c396169dbe 100644
--- a/IDE/ChoixAction.cpp
+++ b/IDE/ChoixAction.cpp
@@ -33,7 +33,7 @@
 #include "GDL/gdTreeItemStringData.h"
 #include "Extensions.h"
 #include "GDL/HelpFileAccess.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/TranslateAction.h"
 #include "GDL/Scene.h"
 #include "GDL/Game.h"
@@ -188,7 +188,7 @@ scene(scene_)
     //Pour chaque paramètres
     for ( unsigned int i = 0;i < MaxPara;i++ )
     {
-        const string num = st( i );
+        const string num =ToString( i );
 
         //Bouton radio pour facultatif ou pas
         ParaFac.push_back(new wxCheckBox( this, ID_CHECKARRAY, "", wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, num ));
diff --git a/IDE/ChoixCondition.cpp b/IDE/ChoixCondition.cpp
index 9cbadc0995..445f81e5bb 100644
--- a/IDE/ChoixCondition.cpp
+++ b/IDE/ChoixCondition.cpp
@@ -52,7 +52,7 @@
 
 #include <string>
 #include <vector>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "MemTrace.h"
 #include "GDL/Scene.h"
 #include "GDL/Game.h"
@@ -231,7 +231,7 @@ scene(scene_)
     {
         //Un sizer
 
-        string num = st( i );
+        string num =ToString( i );
 
         //Bouton radio pour facultatif ou pas
         ParaFac.push_back(new wxCheckBox( this, ID_CHECKARRAY, "", wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, num ));
diff --git a/IDE/ChoixTemplateEvent.cpp b/IDE/ChoixTemplateEvent.cpp
index 27ddfec4d0..40d0233d66 100644
--- a/IDE/ChoixTemplateEvent.cpp
+++ b/IDE/ChoixTemplateEvent.cpp
@@ -15,7 +15,7 @@
 #include <dirent.h>
 
 #include "tinyxml.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/OpenSaveGame.h"
 #include "TemplateEvents.h"
 #include "GDL/HelpFileAccess.h"
@@ -213,7 +213,7 @@ void ChoixTemplateEvent::ProcessEvents(vector < BaseEventSPtr > & events )
                     while ( paramNb < parametersEdit.size() )
                     {
                         string str = allConditionsVectors[k]->at(l).GetParameter(m).GetPlainString();
-                        allConditionsVectors[k]->at(l).SetParameter(m , ConvertParam( str, "_PARAM"+toString(paramNb+1)+"_", static_cast<string>( parametersEdit[paramNb]->GetValue() ) ) );
+                        allConditionsVectors[k]->at(l).SetParameter(m , ConvertParam( str, "_PARAM"+ToString(paramNb+1)+"_", static_cast<string>( parametersEdit[paramNb]->GetValue() ) ) );
                         paramNb++;
                     }
             	}
@@ -231,7 +231,7 @@ void ChoixTemplateEvent::ProcessEvents(vector < BaseEventSPtr > & events )
                     while ( paramNb < parametersEdit.size() )
                     {
                         string str = allActionsVectors[k]->at(l).GetParameter(m).GetPlainString();
-                        allActionsVectors[k]->at(l).SetParameter(m , ConvertParam( str, "_PARAM"+toString(paramNb+1)+"_", static_cast<string>( parametersEdit[paramNb]->GetValue() ) ) );
+                        allActionsVectors[k]->at(l).SetParameter(m , ConvertParam( str, "_PARAM"+ToString(paramNb+1)+"_", static_cast<string>( parametersEdit[paramNb]->GetValue() ) ) );
                         paramNb++;
                     }
             	}
@@ -287,9 +287,9 @@ void ChoixTemplateEvent::Refresh()
         else { wxLogWarning( "Les informations concernant la description d'un template manquent." ); }
 
         unsigned int i = 1;
-        while ( elem->Attribute(string("param"+toString(i)).c_str()) != NULL )
+        while ( elem->Attribute(string("param"+ToString(i)).c_str()) != NULL )
         {
-            newTemplate.parameters.push_back(elem->Attribute(string("param"+toString(i)).c_str()));
+            newTemplate.parameters.push_back(elem->Attribute(string("param"+ToString(i)).c_str()));
             ++i;
         }
 
@@ -346,9 +346,9 @@ void ChoixTemplateEvent::OnTemplateTreeSelectionChanged( wxTreeEvent& event )
     //Add control if necessary
     while ( descriptionsTxt.size() < templatesList[j].parameters.size() )
     {
-        descriptionsTxt.push_back(new wxStaticText(this, wxID_ANY, _("Description"), wxDefaultPosition, wxDefaultSize, 0, toString(descriptionsTxt.size())));
+        descriptionsTxt.push_back(new wxStaticText(this, wxID_ANY, _("Description"), wxDefaultPosition, wxDefaultSize, 0, ToString(descriptionsTxt.size())));
         controlsSizer->Add(descriptionsTxt.back(), 1, wxALL|wxEXPAND|wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL, 5);
-        parametersEdit.push_back(new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, toString(parametersEdit.size())));
+        parametersEdit.push_back(new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator, ToString(parametersEdit.size())));
         controlsSizer->Add(parametersEdit.back(), 1, wxALL|wxEXPAND|wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL, 5);
     }
 
diff --git a/IDE/Clipboard.cpp b/IDE/Clipboard.cpp
index cda386c8cc..ee1c81ff53 100644
--- a/IDE/Clipboard.cpp
+++ b/IDE/Clipboard.cpp
@@ -58,7 +58,7 @@ void Clipboard::kill()
 void Clipboard::SetObject( ObjSPtr object )
 {
     gdp::ExtensionsManager * extensionsManager = gdp::ExtensionsManager::getInstance();
-    objectCopied = extensionsManager->CreateObject(object);
+    objectCopied = object->Clone();
 
     hasObject = true;
 }
diff --git a/IDE/CompilationChecker.cpp b/IDE/CompilationChecker.cpp
index d68b88c0b9..38cdcea111 100644
--- a/IDE/CompilationChecker.cpp
+++ b/IDE/CompilationChecker.cpp
@@ -1,12 +1,12 @@
 #include "CompilationChecker.h"
 #include "GDL/Version.h"
 #include "GDL/VersionWrapper.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 bool CompilationChecker::EnsureCorrectGDLVersion()
 {
-    string versionString =  toString(GDLVersionWrapper::Major()) + ", " + toString(GDLVersionWrapper::Minor()) + ", " +
-                            toString(GDLVersionWrapper::Build()) + ", " + toString(GDLVersionWrapper::Revision());
+    string versionString =  ToString(GDLVersionWrapper::Major()) + ", " + ToString(GDLVersionWrapper::Minor()) + ", " +
+                            ToString(GDLVersionWrapper::Build()) + ", " + ToString(GDLVersionWrapper::Revision());
 
     if (versionString != RC_FILEVERSION_STRING)
     {
diff --git a/IDE/CreateTemplate.cpp b/IDE/CreateTemplate.cpp
index faf6bb3e95..393ec6e75b 100644
--- a/IDE/CreateTemplate.cpp
+++ b/IDE/CreateTemplate.cpp
@@ -17,7 +17,7 @@
 
 #include "GDL/Game.h"
 #include "GDL/OpenSaveGame.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 using namespace std;
 
@@ -291,7 +291,7 @@ void CreateTemplate::ProcessEvents(vector < BaseEventSPtr > & eventsToProcess, v
                     //On respecte bien l'ordre, du plus grand au plus petit
                     for ( unsigned int k = 0; k < parameters.size() ;k++ )
                     {
-                        string ReplaceBy = "_PARAM" + st( parameters.at( k ).second ) + "_";
+                        string ReplaceBy = "_PARAM" +ToString( parameters.at( k ).second ) + "_";
                         parametres.at( j ) = GDExpression( ConvertParam( parametres.at( j ).GetPlainString(), parameters.at( k ).first, ReplaceBy ) );
                     }
                 }
@@ -310,7 +310,7 @@ void CreateTemplate::ProcessEvents(vector < BaseEventSPtr > & eventsToProcess, v
                     //On respecte bien l'ordre, du plus grand au plus petit
                     for ( unsigned int k = 0; k < parameters.size() ;k++ )
                     {
-                        string ReplaceBy = "_PARAM" + st( parameters.at( k ).second ) + "_";
+                        string ReplaceBy = "_PARAM" +ToString( parameters.at( k ).second ) + "_";
                         parametres.at( j ) = GDExpression( ConvertParam( parametres.at( j ).GetPlainString(), parameters.at( k ).first, ReplaceBy ) );
                     }
                 }
diff --git a/IDE/DebuggerGUI.cpp b/IDE/DebuggerGUI.cpp
index f7139dd1b0..c652916bfe 100644
--- a/IDE/DebuggerGUI.cpp
+++ b/IDE/DebuggerGUI.cpp
@@ -9,7 +9,7 @@
 #include <wx/toolbar.h>
 #include <wx/image.h>
 #include <boost/weak_ptr.hpp>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 #ifdef ___WXMSW___
 #include <wx/msw/winundef.h>
@@ -246,13 +246,13 @@ void DebuggerGUI::UpdateGUI()
         return;
 
     //Général
-    generalList->SetItem(0, 1, toString(1/scene.GetElapsedTime())+_(" i/s"));
-    generalList->SetItem(1, 1, toString(scene.GetElapsedTime())+"s");
-    generalList->SetItem(2, 1, toString(scene.objectsInstances.GetAllObjects().size()));
-    generalList->SetItem(3, 1, toString(scene.game->images.size()));
-    generalList->SetItem(4, 1, toString(scene.game->windowWidth)+"*"+toString(scene.game->windowHeight));
-    generalList->SetItem(5, 1, toString(scene.input->GetMouseX())+";"+toString(scene.input->GetMouseY()));
-    generalList->SetItem(6, 1, toString(scene.GetTimeFromStart())+"s");
+    generalList->SetItem(0, 1, ToString(1/scene.GetElapsedTime())+_(" i/s"));
+    generalList->SetItem(1, 1, ToString(scene.GetElapsedTime())+"s");
+    generalList->SetItem(2, 1, ToString(scene.objectsInstances.GetAllObjects().size()));
+    generalList->SetItem(3, 1, ToString(scene.game->images.size()));
+    generalList->SetItem(4, 1, ToString(scene.game->windowWidth)+"*"+ToString(scene.game->windowHeight));
+    generalList->SetItem(5, 1, ToString(scene.input->GetMouseX())+";"+ToString(scene.input->GetMouseY()));
+    generalList->SetItem(6, 1, ToString(scene.GetTimeFromStart())+"s");
 
     const vector < Variable > sceneVariables = scene.variables.GetVariablesVector();
     const vector < Variable > gameVariables = scene.game->variables.GetVariablesVector();
@@ -338,7 +338,7 @@ void DebuggerGUI::UpdateGUI()
             if ( objectsInTree[weakPtrToObject].first != allObjects[i]->GetName() )
             {
                 objectsTree->Delete(objectsInTree[weakPtrToObject].second);
-                wxTreeItemId objectItem = objectsTree->AppendItem(initialObjects[allObjects[i]->GetName()], toString(i));
+                wxTreeItemId objectItem = objectsTree->AppendItem(initialObjects[allObjects[i]->GetName()], ToString(i));
                 objectsInTree[weakPtrToObject] = pair<string, wxTreeItemId>(allObjects[i]->GetName(), objectItem);
             }
         }
@@ -649,14 +649,13 @@ void DebuggerGUI::OnAddObjBtClick( wxCommandEvent & event )
     int IDsceneObject = Picker::PickOneObject( &scene.initialObjects, objectWanted );
     int IDglobalObject = Picker::PickOneObject( &scene.game->globalObjects, objectWanted );
 
-    gdp::ExtensionsManager * extensionManager = gdp::ExtensionsManager::getInstance();
     ObjSPtr newObject = boost::shared_ptr<Object> ();
 
     //Creation of the object
     if ( IDsceneObject != -1)
-        newObject = extensionManager->CreateObject(scene.initialObjects[IDsceneObject]);
+        newObject = scene.initialObjects[IDsceneObject]->Clone();
     else if ( IDglobalObject != -1)
-        newObject = extensionManager->CreateObject(scene.game->globalObjects[IDglobalObject]);
+        newObject = scene.game->globalObjects[IDglobalObject]->Clone();
     else
     {
         wxLogWarning(_("Impossible de créer l'objet."));
@@ -666,8 +665,8 @@ void DebuggerGUI::OnAddObjBtClick( wxCommandEvent & event )
     //Initialisation
     newObject->errors = &scene.errors;
 
-    int x = toInt(string(wxGetTextFromUser(_("Entrez la position X de l'objet"), _("Ajout d'un objet")).mb_str()));
-    int y = toInt(string(wxGetTextFromUser(_("Entrez la position Y de l'objet"), _("Ajout d'un objet")).mb_str()));
+    int x = ToInt(string(wxGetTextFromUser(_("Entrez la position X de l'objet"), _("Ajout d'un objet")).mb_str()));
+    int y = ToInt(string(wxGetTextFromUser(_("Entrez la position Y de l'objet"), _("Ajout d'un objet")).mb_str()));
     newObject->SetX( x );
     newObject->SetY( y );
 
diff --git a/IDE/EditLayer.cpp b/IDE/EditLayer.cpp
index 3086fff078..6bf70581ac 100644
--- a/IDE/EditLayer.cpp
+++ b/IDE/EditLayer.cpp
@@ -7,7 +7,7 @@
 //*)
 #include <wx/log.h>
 #include <cstdlib>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 //(*IdInit(EditLayer)
 const long EditLayer::ID_STATICTEXT1 = wxNewId();
@@ -168,7 +168,7 @@ tempLayer(layer_)
 
 
     for (unsigned int i = 0;i<layer.GetCamerasNumber();++i)
-    	cameraChoice->Append(toString(i));
+    	cameraChoice->Append(ToString(i));
 
     cameraChoice->SetSelection(0);
     RefreshCameraSettings();
@@ -204,7 +204,7 @@ void EditLayer::OnokBtClick(wxCommandEvent& event)
 
 void EditLayer::OnaddCameraBtClick(wxCommandEvent& event)
 {
-    cameraChoice->Append(toString(tempLayer.GetCamerasNumber()));
+    cameraChoice->Append(ToString(tempLayer.GetCamerasNumber()));
     tempLayer.SetCamerasNumber(tempLayer.GetCamerasNumber()+1);
 }
 
@@ -235,8 +235,8 @@ void EditLayer::RefreshCameraSettings()
         cameraWidthEdit->Enable(true);
         cameraHeightEdit->Enable(true);
 
-        cameraWidthEdit->ChangeValue(toString(camera.size.x));
-        cameraHeightEdit->ChangeValue(toString(camera.size.y));
+        cameraWidthEdit->ChangeValue(ToString(camera.size.x));
+        cameraHeightEdit->ChangeValue(ToString(camera.size.y));
     }
 
     viewportX1Edit->SetBackgroundColour(wxColour(255,255,255));
@@ -264,10 +264,10 @@ void EditLayer::RefreshCameraSettings()
         viewportY1Edit->Enable(true);
         viewportY2Edit->Enable(true);
 
-        viewportX1Edit->ChangeValue(toString(camera.viewport.Left));
-        viewportY1Edit->ChangeValue(toString(camera.viewport.Top));
-        viewportX2Edit->ChangeValue(toString(camera.viewport.Right));
-        viewportY2Edit->ChangeValue(toString(camera.viewport.Bottom));
+        viewportX1Edit->ChangeValue(ToString(camera.viewport.Left));
+        viewportY1Edit->ChangeValue(ToString(camera.viewport.Top));
+        viewportX2Edit->ChangeValue(ToString(camera.viewport.Right));
+        viewportY2Edit->ChangeValue(ToString(camera.viewport.Bottom));
     }
 }
 
diff --git a/IDE/EditOptionsPosition.cpp b/IDE/EditOptionsPosition.cpp
index 272ac2280c..d9fa243760 100644
--- a/IDE/EditOptionsPosition.cpp
+++ b/IDE/EditOptionsPosition.cpp
@@ -12,7 +12,7 @@
 #include "GDL/Chercher.h"
 #include "GDL/Game.h"
 #include "GDL/Scene.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/HelpFileAccess.h"
 #include <sstream>
 #include <string>
@@ -211,10 +211,10 @@ scene(scene_)
     //Initializing controls with values
     objectNameTxt->SetLabel( position.objectName );
 
-    XEdit->ChangeValue( toString(position.x) );
-    YEdit->ChangeValue( toString(position.y) );
-    widthEdit->ChangeValue( toString(position.width) );
-    heightEdit->ChangeValue( toString(position.height) );
+    XEdit->ChangeValue( ToString(position.x) );
+    YEdit->ChangeValue( ToString(position.y) );
+    widthEdit->ChangeValue( ToString(position.width) );
+    heightEdit->ChangeValue( ToString(position.height) );
     if ( position.personalizedSize )
     {
         sizeCheck->SetValue(true);
@@ -234,7 +234,7 @@ scene(scene_)
     if ( position.layer == "" )
         layerChoice->SetStringSelection(_("Calque de base"));
 
-    zOrderEdit->ChangeValue( st(position.zOrder) );
+    zOrderEdit->ChangeValue(ToString(position.zOrder) );
 
     //Create the object-specific panel, if it has one.
     wxPanel * returnedPanel = NULL;
@@ -308,7 +308,7 @@ void EditOptionsPosition::OnOkBtClick(wxCommandEvent& event)
     else
         position.personalizedSize = false;
 
-    position.zOrder = toInt(string(zOrderEdit->GetValue().mb_str()));
+    position.zOrder = ToInt(string(zOrderEdit->GetValue().mb_str()));
 
     position.layer = static_cast<string>(layerChoice->GetStringSelection());
     if ( layerChoice->GetStringSelection() == _("Calque de base"))
diff --git a/IDE/EditPropJeu.cpp b/IDE/EditPropJeu.cpp
index bd7ca532ca..c4f4d3e47b 100644
--- a/IDE/EditPropJeu.cpp
+++ b/IDE/EditPropJeu.cpp
@@ -13,7 +13,7 @@
 #include <wx/string.h>
 //*)
 #include "sstream"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include <SFML/System.hpp>
 #include <SFML/Graphics.hpp>
 #include <wx/filedlg.h>
@@ -301,31 +301,31 @@ EditPropJeu::EditPropJeu( wxWindow* parent, Game * pJeu )
     NomEdit->ChangeValue( m_jeu->name );
     AuteurEdit->ChangeValue( m_jeu->author );
 
-    HeightEdit->ChangeValue( st( m_jeu->windowHeight ) );
-    WidthEdit->ChangeValue( st( m_jeu->windowWidth ) );
+    HeightEdit->ChangeValue(ToString( m_jeu->windowHeight ) );
+    WidthEdit->ChangeValue(ToString( m_jeu->windowWidth ) );
 
     afficherEcranCheck->SetValue( true );
     if ( !m_jeu->loadingScreen.afficher )
         afficherEcranCheck->SetValue( false );
 
 
-    widthECEdit->ChangeValue( st( m_jeu->loadingScreen.width ) );
-    heightECEdit->ChangeValue( st( m_jeu->loadingScreen.height ) );
+    widthECEdit->ChangeValue(ToString( m_jeu->loadingScreen.width ) );
+    heightECEdit->ChangeValue(ToString( m_jeu->loadingScreen.height ) );
 
     texteCheck->SetValue( true );
     if ( !m_jeu->loadingScreen.texte )
         texteCheck->SetValue( false );
 
-    texteXPosEdit->ChangeValue( st( m_jeu->loadingScreen.texteXPos ) );
-    texteYPosEdit->ChangeValue( st( m_jeu->loadingScreen.texteYPos ) );
+    texteXPosEdit->ChangeValue(ToString( m_jeu->loadingScreen.texteXPos ) );
+    texteYPosEdit->ChangeValue(ToString( m_jeu->loadingScreen.texteYPos ) );
     texteEdit->ChangeValue( m_jeu->loadingScreen.texteChargement );
 
     pourcentCheck->SetValue( false );
     if ( m_jeu->loadingScreen.pourcent )
         pourcentCheck->SetValue( true );
 
-    pourcentXPosEdit->ChangeValue( st( m_jeu->loadingScreen.pourcentXPos ) );
-    pourcentYPosEdit->ChangeValue( st( m_jeu->loadingScreen.pourcentYPos ) );
+    pourcentXPosEdit->ChangeValue(ToString( m_jeu->loadingScreen.pourcentXPos ) );
+    pourcentYPosEdit->ChangeValue(ToString( m_jeu->loadingScreen.pourcentYPos ) );
 
     imageCheck->SetValue( false );
     if ( m_jeu->loadingScreen.image )
diff --git a/IDE/EditTexte.cpp b/IDE/EditTexte.cpp
index 2cec939ecb..76cf4de7b7 100644
--- a/IDE/EditTexte.cpp
+++ b/IDE/EditTexte.cpp
@@ -116,7 +116,14 @@ void EditTexte::OnAnnulerBtClick(wxCommandEvent& event)
 
 void EditTexte::OnOkBtClick(wxCommandEvent& event)
 {
-    texteFinal = static_cast<string>(TexteEdit->GetValue());
+    texteFinal = string(TexteEdit->GetValue().mb_str());
+
+    GDExpression expressionTest(texteFinal);
+    if ( !expressionTest.PrepareForTextEvaluationOnly(game, scene) )
+    {
+        wxLogWarning(wxString(expressionTest.GetFirstErrorDuringPreprocessingText()));
+    }
+
     EndModal(1);
 }
 
diff --git a/IDE/EditorEvents.cpp b/IDE/EditorEvents.cpp
index 2c6458a886..1b0d15c168 100644
--- a/IDE/EditorEvents.cpp
+++ b/IDE/EditorEvents.cpp
@@ -31,7 +31,7 @@
 #include "GDL/Game.h"
 #include "GDL/ExtensionsManager.h"
 #include "GDL/StandardEvent.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/HelpFileAccess.h"
 #ifdef __WXMSW__
 #include <wx/msw/winundef.h>
@@ -606,7 +606,7 @@ void EditorEvents::OnEventsPanelPaint( wxPaintEvent& event )
     //On récupère la position de dessin initiale
     int Yposition = -( ScrollBar1->GetThumbPosition() );
     int positionScrollbar = ScrollBar1->GetThumbPosition();
-    int initialXposition = 2 + dc.GetTextExtent(st(events->size())).GetWidth() + 2 - horizontalScrollbar->GetThumbPosition();
+    int initialXposition = 2 + dc.GetTextExtent(ToString(events->size())).GetWidth() + 2 - horizontalScrollbar->GetThumbPosition();
     int maximalWidth = 0;
 
     //Setup renderings datas which are constants.
@@ -652,7 +652,7 @@ void EditorEvents::DrawEvents(vector < BaseEventSPtr > & list, wxBufferedPaintDC
         if ( draw )
         {
             dc.SetFont( eventsRenderingHelper->GetFont() );
-            dc.DrawText(st(i+1), initialXposition-(dc.GetTextExtent(st(i+1)).GetWidth()+2), Yposition);
+            dc.DrawText(ToString(i+1), initialXposition-(dc.GetTextExtent(ToString(i+1)).GetWidth()+2), Yposition);
         }
 
         int width = EventsPanel->GetSize().x-initialXposition;
@@ -923,6 +923,7 @@ void EditorEvents::OnMenuPasteSelected( wxCommandEvent& event )
         eventsSelected.push_back(boost::tuples::make_tuple(events, events->size(), (vector <Instruction>*)NULL, 0));
 
     Clipboard * clipboard = Clipboard::getInstance();
+    if ( !clipboard->HasEvent() ) return;
 
     if ( boost::tuples::get<1>(eventsSelected[0]) < GetLastSelectedListOfEvents()->size() )
         GetLastSelectedListOfEvents()->insert( GetLastSelectedListOfEvents()->begin() + boost::tuples::get<1>(eventsSelected[0]), clipboard->GetEvent() );
@@ -941,6 +942,7 @@ void EditorEvents::OnMenuPasteAfterSelected( wxCommandEvent& event )
         eventsSelected.push_back(boost::tuples::make_tuple(events, events->size(), (vector <Instruction>*)NULL, 0));
 
     Clipboard * clipboard = Clipboard::getInstance();
+    if ( !clipboard->HasEvent() ) return;
 
     if ( boost::tuples::get<1>(eventsSelected[0])+1 < GetLastSelectedListOfEvents()->size() )
         GetLastSelectedListOfEvents()->insert( GetLastSelectedListOfEvents()->begin() + boost::tuples::get<1>(eventsSelected[0])+1, clipboard->GetEvent() );
@@ -958,6 +960,8 @@ void EditorEvents::OnPasteAsASubEventSelected(wxCommandEvent& event)
     if ( eventsSelected.empty() || !GetLastSelectedEvent()->CanHaveSubEvents() ) return;
 
     Clipboard * clipboard = Clipboard::getInstance();
+    if ( !clipboard->HasEvent() ) return;
+
     GetLastSelectedEvent()->GetSubEvents().push_back( clipboard->GetEvent() );
 
     ChangesMadeOnEvents();
diff --git a/IDE/EditorLayers.cpp b/IDE/EditorLayers.cpp
index 9479381f53..f5ef1c2a3a 100644
--- a/IDE/EditorLayers.cpp
+++ b/IDE/EditorLayers.cpp
@@ -8,7 +8,7 @@
 //*)
 #include <wx/config.h>
 #include <wx/log.h>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/Position.h"
 #include "ObjectsOnBadLayerBox.h"
 #include "EditLayer.h"
@@ -206,7 +206,7 @@ void EditorLayers::OnAddSelected(wxCommandEvent& event)
     while ( alreadyExist )
     {
         ++nb;
-        name = _("Nouveau calque ") + toString(nb);
+        name = _("Nouveau calque ") + ToString(nb);
 
         alreadyExist = false;
         for (unsigned int i = 0;i<layers->size();++i)
diff --git a/IDE/EditorObjectList.cpp b/IDE/EditorObjectList.cpp
index 0161416b49..c344939073 100644
--- a/IDE/EditorObjectList.cpp
+++ b/IDE/EditorObjectList.cpp
@@ -25,14 +25,14 @@
 #include "GDL/Object.h"
 #include "GDL/Chercher.h"
 #include "GDL/ExtensionsManager.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "MemTrace.h"
 #include "Clipboard.h"
 #include <algorithm>
 #include <numeric>
 #include "EditorObjetsGroups.h"
 #include "GDL/BitmapGUIManager.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "DndTextObjectsEditor.h"
 #include "ObjectTypeChoice.h"
 #include "InitialVariablesDialog.h"
@@ -472,7 +472,7 @@ void EditorObjectList::OnaddObjMenuISelected(wxCommandEvent& event)
     {
         i++;
         name =  _("Nouvel objet")+wxString(" ");
-        wxString Num = st( i );
+        wxString Num =ToString( i );
 
         name += Num;
     }
@@ -657,8 +657,7 @@ void EditorObjectList::OnPasteSelected(wxCommandEvent& event)
     }
 
     //Add a new object of selected type to objects list
-    gdp::ExtensionsManager * extensionsManager = gdp::ExtensionsManager::getInstance();
-    ObjSPtr object = extensionsManager->CreateObject(clipboard->GetObject());
+    ObjSPtr object = clipboard->GetObject()->Clone();
 
     wxString name =  _( "Copie de " ) + object->GetName();
     int i = 0;
@@ -668,7 +667,7 @@ void EditorObjectList::OnPasteSelected(wxCommandEvent& event)
     {
         i++;
         name =  _( "Copie de " ) + object->GetName();
-        wxString Num = st( i );
+        wxString Num =ToString( i );
 
         name += Num;
 
diff --git a/IDE/EditorObjets.cpp b/IDE/EditorObjets.cpp
index 6e47aecf57..056ebd9ac9 100644
--- a/IDE/EditorObjets.cpp
+++ b/IDE/EditorObjets.cpp
@@ -24,7 +24,7 @@
 #include "GDL/Scene.h"
 #include "GDL/Object.h"
 #include "GDL/Chercher.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "MemTrace.h"
 #include "Clipboard.h"
 #include <algorithm>
@@ -79,7 +79,7 @@ mainEditorCommand(mainEditorCommand_)
     globalNotebook->AddPage(globalObjectsGroups, _("Groupes globaux"), false);
     Notebook1->AddPage(sceneNotebook, _("Scène"), false);
     Notebook1->AddPage(globalNotebook, _("Global à tout le jeu"), false);
-    
+
     Connect(wxEVT_SIZE,(wxObjectEventFunction)&EditorObjets::OnResize);
     //*)
 
diff --git a/IDE/EditorObjetsGroups.cpp b/IDE/EditorObjetsGroups.cpp
index 46c154a819..1ab0bd1754 100644
--- a/IDE/EditorObjetsGroups.cpp
+++ b/IDE/EditorObjetsGroups.cpp
@@ -18,7 +18,7 @@
 #include "GDL/Object.h"
 #include "GDL/Game.h"
 #include "Game_Develop_EditorMain.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "EditObjectGroup.h"
 #include "GDL/HelpFileAccess.h"
 #ifdef __WXMSW__
@@ -359,7 +359,7 @@ void EditorObjetsGroups::OnAddGroupSelected(wxCommandEvent& event)
             != objectsGroups->end() )
     {
         ++i;
-        name =  _( "Nouveau groupe" )+" "+st (i);
+        name =  _( "Nouveau groupe" )+" "+ ToString(i);
     }
     NewGroup.SetName( string(name.mb_str()) );
 
diff --git a/IDE/Fusion.cpp b/IDE/Fusion.cpp
index 7390632e18..2ca6e534e8 100644
--- a/IDE/Fusion.cpp
+++ b/IDE/Fusion.cpp
@@ -21,7 +21,7 @@
 
 #endif
 
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/Game.h"
 #include "GDL/ChercherScene.h"
 #include "GDL/OpenSaveGame.h"
@@ -135,14 +135,14 @@ void Fusion::OnFusionBtClick(wxCommandEvent& event)
     {
         for(unsigned int i = 0;i<secondGame.images.size();i++)
         {
-            if ( ChercherNomImage( game.images, secondGame.images.at(i).nom ) != -1)
+            if ( FindImage( game.images, secondGame.images.at(i).nom ) != -1)
             {
                 wxString depart = _("Une image nommé \"");
                 wxString fin = _("\" est déjà présente dans le jeu. Voulez vous la remplacer ?");
                 if (wxMessageBox(depart+secondGame.images.at(i).nom+fin, "Une image de ce nom existe déjà",wxYES_NO ) == wxYES)
                 {
                     //Remplacement
-                    game.images.erase(game.images.begin() + ChercherNomImage( game.images, secondGame.images.at(i).nom ));
+                    game.images.erase(game.images.begin() + FindImage( game.images, secondGame.images.at(i).nom ));
                     game.images.push_back(secondGame.images.at(i));
                 }
 
diff --git a/IDE/Game_Develop_EditorApp.cpp b/IDE/Game_Develop_EditorApp.cpp
index f97019a53a..b17fff7958 100644
--- a/IDE/Game_Develop_EditorApp.cpp
+++ b/IDE/Game_Develop_EditorApp.cpp
@@ -312,7 +312,7 @@ void Game_Develop_EditorApp::OnUnhandledException()
         for (unsigned int i = 0;i<Frame->games.size();++i)
         {
             OpenSaveGame save(*Frame->games[i]);
-            save.SaveToFile("recup"+toString(i)+".gdg");
+            save.SaveToFile("recup"+ToString(i)+".gdg");
         }
 
     }
@@ -338,7 +338,7 @@ bool Game_Develop_EditorApp::OnExceptionInMainLoop()
         for (unsigned int i = 0;i<Frame->games.size();++i)
         {
             OpenSaveGame save(*Frame->games[i]);
-            save.SaveToFile("recup"+toString(i)+".gdg");
+            save.SaveToFile("recup"+ToString(i)+".gdg");
         }
     }
     catch(...)
diff --git a/IDE/Game_Develop_EditorMain.cpp b/IDE/Game_Develop_EditorMain.cpp
index 09bbb979df..529bd7d1ee 100644
--- a/IDE/Game_Develop_EditorMain.cpp
+++ b/IDE/Game_Develop_EditorMain.cpp
@@ -57,7 +57,7 @@ extern MemTrace MemTracer;
 #endif
 
 #include "Game_Develop_EditorMain.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/ChercherScene.h"
 #include "GDL/OpenSaveGame.h"
 #include "GDL/EditorImages.h"
diff --git a/IDE/Game_Develop_EditorMain.h b/IDE/Game_Develop_EditorMain.h
index 7f6e8ee482..f82a145a18 100644
--- a/IDE/Game_Develop_EditorMain.h
+++ b/IDE/Game_Develop_EditorMain.h
@@ -44,7 +44,7 @@
 #include "GDL/Game.h"
 #include "GDL/OpenSaveGame.h"
 #include <wx/log.h>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "RecentList.h"
 class RuntimeGame;
 class ProjectManager;
diff --git a/IDE/GridSetup.cpp b/IDE/GridSetup.cpp
index 638a2bdc7a..9986f40fc7 100644
--- a/IDE/GridSetup.cpp
+++ b/IDE/GridSetup.cpp
@@ -6,7 +6,7 @@
 //*)
 #include <wx/colordlg.h>
 #include <wx/log.h>
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 //(*IdInit(GridSetup)
 const long GridSetup::ID_STATICTEXT3 = wxNewId();
@@ -89,8 +89,8 @@ b(b_)
 	//*)
 
 	snapCheck->SetValue(snap);
-	widthEdit->ChangeValue(toString(gridWidth));
-	heightEdit->ChangeValue(toString(gridHeight));
+	widthEdit->ChangeValue(ToString(gridWidth));
+	heightEdit->ChangeValue(ToString(gridHeight));
     colorPanel->SetBackgroundColour( wxColor(r,g,b) );
 }
 
@@ -104,19 +104,19 @@ GridSetup::~GridSetup()
 void GridSetup::OnokBtClick(wxCommandEvent& event)
 {
     snap = snapCheck->GetValue();
-    if ( toInt(static_cast<string>(widthEdit->GetValue())) < 1)
+    if ( ToInt(static_cast<string>(widthEdit->GetValue())) < 1)
     {
         wxLogWarning(_("La largeur de la grille est incorrecte."));
         return;
     }
-    if ( toInt(static_cast<string>(heightEdit->GetValue())) < 1)
+    if ( ToInt(static_cast<string>(heightEdit->GetValue())) < 1)
     {
         wxLogWarning(_("La hauteur de la grille est incorrecte."));
         return;
     }
 
-    gridWidth = toInt(static_cast<string>(widthEdit->GetValue()));
-    gridHeight = toInt(static_cast<string>(heightEdit->GetValue()));
+    gridWidth = ToInt(static_cast<string>(widthEdit->GetValue()));
+    gridHeight = ToInt(static_cast<string>(heightEdit->GetValue()));
 
     EndModal(1);
 }
diff --git a/IDE/IDE.depend b/IDE/IDE.depend
index d4c9327962..9cfc48fd3b 100644
--- a/IDE/IDE.depend
+++ b/IDE/IDE.depend
@@ -279,7 +279,7 @@
 	<string>
 	<vector>
 
-1271877975 d:\florian\programmation\gamedevelop\gdl\gdl\runtimescene.h
+1273765125 d:\florian\programmation\gamedevelop\gdl\gdl\runtimescene.h
 	"GDL/MemTrace.h"
 	<iostream>
 	<sstream>
@@ -291,7 +291,7 @@
 	"GDL/ImageManager.h"
 	"GDL/Object.h"
 	"GDL/Event.h"
-	"GDL/algo.h"
+	"GDL/CommonTools.h"
 	"GDL/Son.h"
 	"GDL/Music.h"
 	"GDL/constantes.h"
@@ -1513,7 +1513,7 @@
 	"GDL/Position.h"
 	"GDL/Layer.h"
 
-1272661219 d:\florian\programmation\gamedevelop\gdl\gdl\event.h
+1273756713 d:\florian\programmation\gamedevelop\gdl\gdl\event.h
 	<iostream>
 	<vector>
 	<string>
@@ -1528,24 +1528,27 @@
 	<string>
 	<vector>
 
-1267911590 d:\florian\programmation\gamedevelop\gdl\gdl\instruction.h
+1273756713 d:\florian\programmation\gamedevelop\gdl\gdl\instruction.h
 	<string>
 	<vector>
 	<iostream>
 	"GDL/GDExpression.h"
 
-1272913961 d:\florian\programmation\gamedevelop\gdl\gdl\gdexpression.h
+1274120260 d:\florian\programmation\gamedevelop\gdl\gdl\gdexpression.h
 	<string>
 	<vector>
 	<iostream>
 	"GDL/GDMathParser.h"
 	<boost/shared_ptr.hpp>
 	"GDL/ExpressionInstruction.h"
+	"GDL/StrExpressionInstruction.h"
 	"GDL/ObjectIdentifiersManager.h"
 
-1272998565 d:\florian\programmation\gamedevelop\gdl\gdl\gdmathparser.h
+1274009870 d:\florian\programmation\gamedevelop\gdl\gdl\gdmathparser.h
 	"GDL/fparser/fparser.hh"
 	<cmath>
+	<vector>
+	<string>
 	"gpl.h"
 
 1265744838 d:\florian\programmation\gamedevelop\gdl\gdl\fparser\fparser.hh
@@ -1555,7 +1558,12 @@
 
 1264364228 d:\florian\programmation\gamedevelop\gdl\gdl\gpl.h
 
-1264364232 d:\florian\programmation\gamedevelop\gdl\gdl\expressioninstruction.h
+1273874412 d:\florian\programmation\gamedevelop\gdl\gdl\expressioninstruction.h
+	<vector>
+	<string>
+	<boost/shared_ptr.hpp>
+
+1273948898 d:\florian\programmation\gamedevelop\gdl\gdl\strexpressioninstruction.h
 	<vector>
 	<string>
 	<boost/shared_ptr.hpp>
@@ -5006,7 +5014,7 @@
 
 1253308487 c:\libs\wxwidgets\include\wx\osx\config_xcode.h
 
-1253308462 c:\libs\wxwidgets\lib\gcc_dll\msw\wx\setup.h
+1253308462 c:\libs\wxwidgets\lib\gcc_dll\mswd\wx\setup.h
 
 1253308518 c:\libs\wxwidgets\include\wx\setup_gccxml.h
 
@@ -6127,7 +6135,7 @@
 1253308521 c:\libs\wxwidgets\include\wx\dcclient.h
 	"wx/dc.h"
 
-1268859962 d:\florian\programmation\gamedevelop\gdl\gdl\object.h
+1273865631 d:\florian\programmation\gamedevelop\gdl\gdl\object.h
 	<SFML/System.hpp>
 	<SFML/Graphics.hpp>
 	<iostream>
@@ -8005,13 +8013,13 @@
 	<vector>
 	<string>
 
-1267820376 d:\florian\programmation\gamedevelop\gdl\gdl\algo.h
-	<sstream>
+1273962369 d:\florian\programmation\gamedevelop\gdl\gdl\commontools.h
 	<string>
+	<sstream>
 	<iostream>
-	"GDL/Object.h"
 	<vector>
-	<stdio.h>
+	"GDL/Image.h"
+	<cmath>
 
 1264364228 d:\florian\programmation\gamedevelop\gdl\gdl\son.h
 	<SFML/Audio.hpp>
@@ -8257,7 +8265,7 @@
 	<string>
 	<vector>
 
-1272817225 source:d:\florian\programmation\gamedevelop\ide\choixaction.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\choixaction.cpp
 	"ChoixAction.h"
 	<wx/bitmap.h>
 	<wx/font.h>
@@ -8276,7 +8284,7 @@
 	"GDL/gdTreeItemStringData.h"
 	"Extensions.h"
 	"GDL/HelpFileAccess.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/TranslateAction.h"
 	"GDL/Scene.h"
 	"GDL/Game.h"
@@ -8715,14 +8723,6 @@
 	"wx/filesys.h"
 	"wx/hashmap.h"
 
-1267820206 d:\florian\programmation\gamedevelop\gdl\gdl\stdalgo.h
-	<string>
-	<sstream>
-	<iostream>
-	<vector>
-	"GDL/Image.h"
-	<cmath>
-
 1271188947 d:\florian\programmation\gamedevelop\gdl\gdl\translateaction.h
 	<string>
 	<vector>
@@ -8730,7 +8730,7 @@
 	<wx/bitmap.h>
 	"GDL/Instruction.h"
 
-1270477350 d:\florian\programmation\gamedevelop\gdl\gdl\extensionsmanager.h
+1273867366 d:\florian\programmation\gamedevelop\gdl\gdl\extensionsmanager.h
 	<string>
 	<iostream>
 	<vector>
@@ -8738,7 +8738,7 @@
 	<boost/bimap/bimap.hpp>
 	"GDL/ExtensionBase.h"
 
-1272219222 d:\florian\programmation\gamedevelop\gdl\gdl\extensionbase.h
+1273949149 d:\florian\programmation\gamedevelop\gdl\gdl\extensionbase.h
 	<string>
 	<vector>
 	<map>
@@ -8860,7 +8860,7 @@
 	<vector>
 	<wx/msgdlg.h>
 
-1272817390 source:d:\florian\programmation\gamedevelop\ide\choixcondition.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\choixcondition.cpp
 	"debugMem.h"
 	"CppUnitLite/TestHarness.h"
 	"ChoixCondition.h"
@@ -8893,7 +8893,7 @@
 	"Extensions.h"
 	<string>
 	<vector>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"MemTrace.h"
 	"GDL/Scene.h"
 	"GDL/Game.h"
@@ -8979,7 +8979,7 @@
 	<wx/image.h>
 	<wx/string.h>
 
-1271882921 source:d:\florian\programmation\gamedevelop\ide\choixtemplateevent.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\choixtemplateevent.cpp
 	"ChoixTemplateEvent.h"
 	<wx/bitmap.h>
 	<wx/font.h>
@@ -8992,7 +8992,7 @@
 	<sys/types.h>
 	<dirent.h>
 	"tinyxml.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/OpenSaveGame.h"
 	"TemplateEvents.h"
 	"GDL/HelpFileAccess.h"
@@ -9015,11 +9015,11 @@
 	<string>
 	<vector>
 
-1271006256 d:\florian\programmation\gamedevelop\gdl\gdl\opensavegame.h
+1273765125 d:\florian\programmation\gamedevelop\gdl\gdl\opensavegame.h
 	"GDL/Game.h"
 	<string>
 	"GDL/tinyxml.h"
-	"GDL/algo.h"
+	"GDL/CommonTools.h"
 
 1272726603 source:d:\florian\programmation\gamedevelop\ide\choixvariabledialog.cpp
 	"ChoixVariableDialog.h"
@@ -9035,7 +9035,7 @@
 	"GDL/ListVariable.h"
 	<gtk/gtk.h>
 
-1272310878 source:d:\florian\programmation\gamedevelop\ide\clipboard.cpp
+1273866307 source:d:\florian\programmation\gamedevelop\ide\clipboard.cpp
 	<boost/shared_ptr.hpp>
 	"Clipboard.h"
 	"MemTrace.h"
@@ -9234,7 +9234,7 @@
 	<stdio.h>
 	<stdlib.h>
 
-1270751320 source:d:\florian\programmation\gamedevelop\ide\createtemplate.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\createtemplate.cpp
 	"CreateTemplate.h"
 	<wx/bitmap.h>
 	<wx/settings.h>
@@ -9250,7 +9250,7 @@
 	<vector>
 	"GDL/Game.h"
 	"GDL/OpenSaveGame.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 
 1270750594 d:\florian\programmation\gamedevelop\ide\createtemplate.h
 	<wx/notebook.h>
@@ -9272,7 +9272,7 @@
 	<iostream>
 	"tinyxml.h"
 
-1272038411 source:d:\florian\programmation\gamedevelop\ide\debuggergui.cpp
+1273866306 source:d:\florian\programmation\gamedevelop\ide\debuggergui.cpp
 	"DebuggerGUI.h"
 	<wx/bitmap.h>
 	<wx/intl.h>
@@ -9281,7 +9281,7 @@
 	<wx/toolbar.h>
 	<wx/image.h>
 	<boost/weak_ptr.hpp>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	<wx/msw/winundef.h>
 	"GDL/ExtensionsManager.h"
 	"GDL/Chercher.h"
@@ -9305,7 +9305,7 @@
 	"GDL/BaseDebugger.h"
 	<wx/msw/winundef.h>
 
-1267217460 source:d:\florian\programmation\gamedevelop\ide\demarrage.cpp
+1273596113 source:d:\florian\programmation\gamedevelop\ide\demarrage.cpp
 	"Demarrage.h"
 	"nommgr.h"
 	<wx/help.h>
@@ -9395,7 +9395,7 @@
 	<os2.h>
 	<pmstddlg.h>
 
-1271977551 d:\florian\programmation\gamedevelop\ide\game_develop_editormain.h
+1273765162 d:\florian\programmation\gamedevelop\ide\game_develop_editormain.h
 	<wx/sizer.h>
 	<wx/menu.h>
 	<wx/aui/aui.h>
@@ -9422,7 +9422,7 @@
 	"GDL/Game.h"
 	"GDL/OpenSaveGame.h"
 	<wx/log.h>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"RecentList.h"
 
 1253308436 c:\libs\wxwidgets\include\wx\aui\aui.h
@@ -9596,7 +9596,7 @@
 	<string>
 	<vector>
 
-1266689736 d:\florian\programmation\gamedevelop\ide\scenecanvas.h
+1273765128 d:\florian\programmation\gamedevelop\ide\scenecanvas.h
 	<SFML/Graphics.hpp>
 	<SFML/System.hpp>
 	"wxSFMLCanvas.hpp"
@@ -9612,7 +9612,7 @@
 	"GDL/Collisions.h"
 	"GDL/Event.h"
 	"GDL/Chercher.h"
-	"GDL/algo.h"
+	"GDL/CommonTools.h"
 	"GDL/Game.h"
 	"GDL/RuntimeScene.h"
 	"GDL/ImageManager.h"
@@ -9632,7 +9632,7 @@
 	"GDL/SpriteObject.h"
 	<cmath>
 
-1267821792 d:\florian\programmation\gamedevelop\gdl\gdl\spriteobject.h
+1273865784 d:\florian\programmation\gamedevelop\gdl\gdl\spriteobject.h
 	"GDL/Object.h"
 
 1271883269 d:\florian\programmation\gamedevelop\ide\editorobjets.h
@@ -9757,14 +9757,14 @@
 1264364134 d:\florian\programmation\gamedevelop\ide\dndtextsceneeditor.h
 	<wx/dnd.h>
 
-1272818391 source:d:\florian\programmation\gamedevelop\ide\editlayer.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\editlayer.cpp
 	"EditLayer.h"
 	<wx/font.h>
 	<wx/intl.h>
 	<wx/string.h>
 	<wx/log.h>
 	<cstdlib>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 
 1266348292 d:\florian\programmation\gamedevelop\ide\editlayer.h
 	<wx/sizer.h>
@@ -9813,7 +9813,7 @@
 	<string>
 	<vector>
 
-1272817390 source:d:\florian\programmation\gamedevelop\ide\editoptionsposition.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\editoptionsposition.cpp
 	"EditOptionsPosition.h"
 	<wx/settings.h>
 	<wx/font.h>
@@ -9825,7 +9825,7 @@
 	"GDL/Chercher.h"
 	"GDL/Game.h"
 	"GDL/Scene.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/HelpFileAccess.h"
 	<sstream>
 	<string>
@@ -9843,7 +9843,7 @@
 	"GDL/Position.h"
 	"GDL/Object.h"
 
-1272818477 source:d:\florian\programmation\gamedevelop\ide\editpropjeu.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\editpropjeu.cpp
 	"EditPropJeu.h"
 	"nommgr.h"
 	<wx/bitmap.h>
@@ -9853,7 +9853,7 @@
 	<wx/image.h>
 	<wx/string.h>
 	"sstream"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	<SFML/System.hpp>
 	<SFML/Graphics.hpp>
 	<wx/filedlg.h>
@@ -9964,14 +9964,7 @@
 	<wx/dialog.h>
 	"GDL/Scene.h"
 
-1272817738 source:d:\florian\programmation\gamedevelop\ide\edittexte.cpp
-	"EditTexte.h"
-	<wx/intl.h>
-	<wx/string.h>
-	"GDL/EditExpression.h"
-	<wx/textdlg.h>
-
-1272662477 source:d:\florian\programmation\gamedevelop\ide\editorevents.cpp
+1273767117 source:d:\florian\programmation\gamedevelop\ide\editorevents.cpp
 	"debugMem.h"
 	"CppUnitLite/TestHarness.h"
 	"EditorEvents.h"
@@ -9993,7 +9986,7 @@
 	"GDL/Game.h"
 	"GDL/ExtensionsManager.h"
 	"GDL/StandardEvent.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/HelpFileAccess.h"
 	<wx/msw/winundef.h>
 	"Clipboard.h"
@@ -10037,7 +10030,7 @@
 	<wx/html/htmprint.h>
 	<vector>
 
-1272661220 d:\florian\programmation\gamedevelop\gdl\gdl\standardevent.h
+1273756713 d:\florian\programmation\gamedevelop\gdl\gdl\standardevent.h
 	<wx/bitmap.h>
 	<wx/dcbuffer.h>
 	<wx/html/htmprint.h>
@@ -10067,7 +10060,7 @@
 	<wx/panel.h>
 	<wx/button.h>
 
-1266691614 source:d:\florian\programmation\gamedevelop\ide\editorlayers.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\editorlayers.cpp
 	"EditorLayers.h"
 	<wx/bitmap.h>
 	<wx/intl.h>
@@ -10075,7 +10068,7 @@
 	<wx/string.h>
 	<wx/config.h>
 	<wx/log.h>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/Position.h"
 	"ObjectsOnBadLayerBox.h"
 	"EditLayer.h"
@@ -10093,7 +10086,7 @@
 	<wx/dialog.h>
 	"GDL/Layer.h"
 
-1270318868 source:d:\florian\programmation\gamedevelop\ide\editorobjectlist.cpp
+1273866307 source:d:\florian\programmation\gamedevelop\ide\editorobjectlist.cpp
 	"EditorObjectList.h"
 	<wx/bitmap.h>
 	<wx/intl.h>
@@ -10116,14 +10109,14 @@
 	"GDL/Object.h"
 	"GDL/Chercher.h"
 	"GDL/ExtensionsManager.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"MemTrace.h"
 	"Clipboard.h"
 	<algorithm>
 	<numeric>
 	"EditorObjetsGroups.h"
 	"GDL/BitmapGUIManager.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"DndTextObjectsEditor.h"
 	"ObjectTypeChoice.h"
 	"InitialVariablesDialog.h"
@@ -10157,7 +10150,7 @@
 	"GDL/ListVariable.h"
 	<wx/msw/winundef.h>
 
-1272055414 source:d:\florian\programmation\gamedevelop\ide\editorobjets.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\editorobjets.cpp
 	<wx/msw/winundef.h>
 	"debugMem.h"
 	"EditorObjets.h"
@@ -10173,7 +10166,7 @@
 	"GDL/Scene.h"
 	"GDL/Object.h"
 	"GDL/Chercher.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"MemTrace.h"
 	"Clipboard.h"
 	<algorithm>
@@ -10182,7 +10175,7 @@
 	"GDL/BitmapGUIManager.h"
 	<gtk/gtk.h>
 
-1267217462 source:d:\florian\programmation\gamedevelop\ide\editorobjetsgroups.cpp
+1273771285 source:d:\florian\programmation\gamedevelop\ide\editorobjetsgroups.cpp
 	"EditorObjetsGroups.h"
 	<wx/bitmap.h>
 	<wx/intl.h>
@@ -10200,7 +10193,7 @@
 	"GDL/Object.h"
 	"GDL/Game.h"
 	"Game_Develop_EditorMain.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"EditObjectGroup.h"
 	"GDL/HelpFileAccess.h"
 	<wx/msw/winundef.h>
@@ -10279,7 +10272,7 @@
 	<string>
 	<vector>
 
-1267283858 source:d:\florian\programmation\gamedevelop\ide\fusion.cpp
+1273765322 source:d:\florian\programmation\gamedevelop\ide\fusion.cpp
 	"Fusion.h"
 	"nommgr.h"
 	<wx/filedlg.h>
@@ -10287,7 +10280,7 @@
 	<vector>
 	<wx/log.h>
 	<wx/msgdlg.h>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/Game.h"
 	"GDL/ChercherScene.h"
 	"GDL/OpenSaveGame.h"
@@ -10325,7 +10318,7 @@
 	<iostream>
 	<wx/dcbuffer.h>
 
-1272198779 source:d:\florian\programmation\gamedevelop\ide\game_develop_editorapp.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\game_develop_editorapp.cpp
 	"debugMem.h"
 	<wx/msw/winundef.h>
 	<wx/image.h>
@@ -10471,7 +10464,7 @@
 
 1264364230 d:\florian\programmation\gamedevelop\gdl\gdl\spriteextension.h
 
-1271977551 source:d:\florian\programmation\gamedevelop\ide\game_develop_editormain.cpp
+1273765162 source:d:\florian\programmation\gamedevelop\ide\game_develop_editormain.cpp
 	"debugMem.h"
 	"MemTrace.h"
 	"nommgr.h"
@@ -10504,7 +10497,7 @@
 	"GDAuiTabArt.h"
 	<wx/msw/winundef.h>
 	"Game_Develop_EditorMain.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/ChercherScene.h"
 	"GDL/OpenSaveGame.h"
 	"GDL/EditorImages.h"
@@ -10577,13 +10570,13 @@
 	<string>
 	<SFML/System.hpp>
 
-1272817738 source:d:\florian\programmation\gamedevelop\ide\gridsetup.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\gridsetup.cpp
 	"GridSetup.h"
 	<wx/intl.h>
 	<wx/string.h>
 	<wx/colordlg.h>
 	<wx/log.h>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 
 1264364136 source:d:\florian\programmation\gamedevelop\ide\imageeditor.cpp
 	"ImageEditor.h"
@@ -10593,7 +10586,7 @@
 1264364132 d:\florian\programmation\gamedevelop\ide\imageeditor.h
 	<wx/frame.h>
 
-1272817738 source:d:\florian\programmation\gamedevelop\ide\importimage.cpp
+1273771433 source:d:\florian\programmation\gamedevelop\ide\importimage.cpp
 	"ImportImage.h"
 	<wx/bitmap.h>
 	<wx/settings.h>
@@ -10605,7 +10598,7 @@
 	<wx/animate.h>
 	<wx/animate.h>
 	<wx/filename.h>
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 
 1264364134 d:\florian\programmation\gamedevelop\ide\importimage.h
 	<wx/notebook.h>
@@ -10655,7 +10648,7 @@
 	"GDL/ListVariable.h"
 	<gtk/gtk.h>
 
-1272817738 source:d:\florian\programmation\gamedevelop\ide\maj.cpp
+1273771433 source:d:\florian\programmation\gamedevelop\ide\maj.cpp
 	"MAJ.h"
 	<wx/bitmap.h>
 	<wx/settings.h>
@@ -10665,7 +10658,7 @@
 	<wx/string.h>
 	"CheckMAJ.h"
 	"tinyxml.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 	"GDL/VersionWrapper.h"
 	<wx/log.h>
 	<wx/mimetype.h>
@@ -10864,7 +10857,7 @@
 	<wx/string.h>
 	"GDL/Layer.h"
 
-1272727005 source:d:\florian\programmation\gamedevelop\ide\playerunittests.cpp
+1273758351 source:d:\florian\programmation\gamedevelop\ide\playerunittests.cpp
 	"CppUnitLite/TestHarness.h"
 	"GDL/Object.h"
 	"GDL/aMove.h"
@@ -10880,7 +10873,7 @@
 	"windows.h"
 	<wx/msw/winundef.h>
 
-1264364228 d:\florian\programmation\gamedevelop\gdl\gdl\amove.h
+1273765126 d:\florian\programmation\gamedevelop\gdl\gdl\amove.h
 	<vector>
 	<string>
 	"GDL/Object.h"
@@ -10889,7 +10882,7 @@
 	<iostream>
 	<sstream>
 	"GDL/Chercher.h"
-	"GDL/algo.h"
+	"GDL/CommonTools.h"
 	"GDL/Force.h"
 	<iostream>
 	"GDL/Access.h"
@@ -10899,7 +10892,7 @@
 	"GDL/RuntimeScene.h"
 	"GDL/Game.h"
 
-1264364232 d:\florian\programmation\gamedevelop\gdl\gdl\cmove.h
+1273765127 d:\florian\programmation\gamedevelop\gdl\gdl\cmove.h
 	<vector>
 	<string>
 	"GDL/Object.h"
@@ -10908,7 +10901,7 @@
 	<iostream>
 	<sstream>
 	"GDL/Chercher.h"
-	"GDL/algo.h"
+	"GDL/CommonTools.h"
 	"GDL/Force.h"
 	<iostream>
 	"GDL/Access.h"
@@ -10960,7 +10953,7 @@
 	<vector>
 	<iostream>
 
-1272564979 source:d:\florian\programmation\gamedevelop\ide\projectmanager.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\projectmanager.cpp
 	"ProjectManager.h"
 	<wx/bitmap.h>
 	<wx/intl.h>
@@ -10986,13 +10979,13 @@
 1264364134 source:d:\florian\programmation\gamedevelop\ide\recentlist.cpp
 	"RecentList.h"
 
-1266012842 source:d:\florian\programmation\gamedevelop\ide\renderdialog.cpp
+1273689571 source:d:\florian\programmation\gamedevelop\ide\renderdialog.cpp
 	"RenderDialog.h"
 	<wx/intl.h>
 	<wx/string.h>
 	<iostream>
 
-1272036062 source:d:\florian\programmation\gamedevelop\ide\scenecanvas.cpp
+1273866307 source:d:\florian\programmation\gamedevelop\ide\scenecanvas.cpp
 	"SceneCanvas.h"
 	<string>
 	<SFML/System.hpp>
@@ -11007,8 +11000,8 @@
 	<iostream>
 	<sstream>
 	"GDL/Chercher.h"
-	"GDL/algo.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
+	"GDL/CommonTools.h"
 	"EditOptionsPosition.h"
 	<wx/log.h>
 	<wx/scrolbar.h>
@@ -11096,9 +11089,9 @@
 	"wx/msw/rcdefs.h"
 	"version.h"
 
-1263937643 c:\libs\wxwidgets\lib\gcc_dll\msw\wx\msw\rcdefs.h
+1253437186 c:\libs\wxwidgets\lib\gcc_dll\mswd\wx\msw\rcdefs.h
 
-1272742095 d:\florian\programmation\gamedevelop\ide\version.h
+1274123673 d:\florian\programmation\gamedevelop\ide\version.h
 
 1264364132 source:d:\florian\programmation\gamedevelop\ide\tinystr.cpp
 	"tinystr.h"
@@ -11230,7 +11223,7 @@
 
 1259350652 c:\libs\sfml\include\sfml\network\selector.inl
 
-1267300288 source:d:\florian\programmation\gamedevelop\ide\credits.cpp
+1273596141 source:d:\florian\programmation\gamedevelop\ide\credits.cpp
 	"Credits.h"
 	<wx/bitmap.h>
 	<wx/font.h>
@@ -11243,11 +11236,23 @@
 	<vector>
 	<iostream>
 
-1272051368 source:d:\florian\programmation\gamedevelop\ide\compilationchecker.cpp
+1273766515 source:d:\florian\programmation\gamedevelop\ide\compilationchecker.cpp
 	"CompilationChecker.h"
 	"GDL/Version.h"
 	"GDL/VersionWrapper.h"
-	"GDL/StdAlgo.h"
+	"GDL/CommonTools.h"
 
-1272998934 d:\florian\programmation\gamedevelop\gdl\gdl\version.h
+1274120855 d:\florian\programmation\gamedevelop\gdl\gdl\version.h
+
+1253308462 c:\libs\wxwidgets\lib\gcc_dll\msw\wx\setup.h
+
+1274122190 source:d:\florian\programmation\gamedevelop\ide\edittexte.cpp
+	"EditTexte.h"
+	<wx/intl.h>
+	<wx/string.h>
+	"GDL/EditExpression.h"
+	"GDL/RuntimeScene.h"
+	<wx/textdlg.h>
+
+1263937643 c:\libs\wxwidgets\lib\gcc_dll\msw\wx\msw\rcdefs.h
 
diff --git a/IDE/IDE.layout b/IDE/IDE.layout
index 32e053ca3e..62a4176353 100644
--- a/IDE/IDE.layout
+++ b/IDE/IDE.layout
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <CodeBlocks_layout_file>
-	<ActiveTarget name="Release - Edittime" />
+	<ActiveTarget name="Debug - Edittime" />
 	<File name="BugReport.cpp" open="0" top="0" tabpos="27">
 		<Cursor position="9408" topLine="106" />
 	</File>
@@ -20,16 +20,16 @@
 		<Cursor position="288" topLine="0" />
 	</File>
 	<File name="ChoixAction.cpp" open="0" top="0" tabpos="11">
-		<Cursor position="28963" topLine="655" />
+		<Cursor position="653" topLine="35" />
 	</File>
 	<File name="ChoixAction.h" open="0" top="0" tabpos="0">
 		<Cursor position="0" topLine="27" />
 	</File>
 	<File name="ChoixCondition.cpp" open="0" top="0" tabpos="12">
-		<Cursor position="31365" topLine="693" />
+		<Cursor position="1141" topLine="54" />
 	</File>
-	<File name="ChoixTemplateEvent.cpp" open="0" top="0" tabpos="16">
-		<Cursor position="17301" topLine="327" />
+	<File name="ChoixTemplateEvent.cpp" open="0" top="0" tabpos="2">
+		<Cursor position="17968" topLine="315" />
 	</File>
 	<File name="ChoixTemplateEvent.h" open="0" top="0" tabpos="15">
 		<Cursor position="331" topLine="0" />
@@ -37,8 +37,8 @@
 	<File name="ChoixVariableDialog.cpp" open="0" top="0" tabpos="7">
 		<Cursor position="366" topLine="0" />
 	</File>
-	<File name="Clipboard.cpp" open="0" top="0" tabpos="3">
-		<Cursor position="1656" topLine="69" />
+	<File name="Clipboard.cpp" open="0" top="0" tabpos="15">
+		<Cursor position="1232" topLine="43" />
 	</File>
 	<File name="Clipboard.h" open="0" top="0" tabpos="17">
 		<Cursor position="941" topLine="10" />
@@ -49,8 +49,8 @@
 	<File name="Compilation.h" open="0" top="0" tabpos="0">
 		<Cursor position="3151" topLine="104" />
 	</File>
-	<File name="CompilationChecker.cpp" open="0" top="0" tabpos="2">
-		<Cursor position="878" topLine="0" />
+	<File name="CompilationChecker.cpp" open="0" top="0" tabpos="3">
+		<Cursor position="382" topLine="0" />
 	</File>
 	<File name="CompilationChecker.h" open="0" top="0" tabpos="1">
 		<Cursor position="162" topLine="0" />
@@ -65,7 +65,7 @@
 		<Cursor position="13817" topLine="328" />
 	</File>
 	<File name="CreateTemplate.cpp" open="0" top="0" tabpos="2">
-		<Cursor position="19350" topLine="252" />
+		<Cursor position="438" topLine="19" />
 	</File>
 	<File name="CreateTemplate.h" open="0" top="0" tabpos="0">
 		<Cursor position="3156" topLine="97" />
@@ -74,7 +74,7 @@
 		<Cursor position="2181" topLine="40" />
 	</File>
 	<File name="DebuggerGUI.cpp" open="0" top="0" tabpos="4">
-		<Cursor position="24631" topLine="484" />
+		<Cursor position="27574" topLine="645" />
 	</File>
 	<File name="DebuggerGUI.h" open="0" top="0" tabpos="0">
 		<Cursor position="2773" topLine="93" />
@@ -85,14 +85,14 @@
 	<File name="DnDFileEditor.cpp" open="0" top="0" tabpos="13">
 		<Cursor position="322" topLine="0" />
 	</File>
-	<File name="DndTextObjectsEditor.cpp" open="0" top="0" tabpos="20">
-		<Cursor position="426" topLine="0" />
+	<File name="DndTextObjectsEditor.cpp" open="0" top="0" tabpos="16">
+		<Cursor position="634" topLine="1" />
 	</File>
 	<File name="DndTextSceneEditor.cpp" open="0" top="0" tabpos="4">
 		<Cursor position="239" topLine="0" />
 	</File>
-	<File name="EditLayer.cpp" open="0" top="0" tabpos="16">
-		<Cursor position="11604" topLine="145" />
+	<File name="EditLayer.cpp" open="0" top="0" tabpos="5">
+		<Cursor position="14715" topLine="234" />
 	</File>
 	<File name="EditLayer.h" open="0" top="0" tabpos="6">
 		<Cursor position="2582" topLine="62" />
@@ -100,26 +100,26 @@
 	<File name="EditObjectGroup.cpp" open="0" top="0" tabpos="3">
 		<Cursor position="313" topLine="13" />
 	</File>
-	<File name="EditOptionsPosition.cpp" open="0" top="0" tabpos="17">
-		<Cursor position="14699" topLine="219" />
+	<File name="EditOptionsPosition.cpp" open="0" top="0" tabpos="6">
+		<Cursor position="14067" topLine="181" />
 	</File>
 	<File name="EditOptionsPosition.h" open="0" top="0" tabpos="0">
 		<Cursor position="601" topLine="6" />
 	</File>
 	<File name="EditPropJeu.cpp" open="0" top="0" tabpos="18">
-		<Cursor position="24236" topLine="330" />
+		<Cursor position="302" topLine="15" />
 	</File>
 	<File name="EditPropScene.cpp" open="0" top="0" tabpos="19">
 		<Cursor position="7522" topLine="209" />
 	</File>
-	<File name="EditTexte.cpp" open="0" top="0" tabpos="20">
-		<Cursor position="6375" topLine="84" />
+	<File name="EditTexte.cpp" open="1" top="1" tabpos="0">
+		<Cursor position="6780" topLine="105" />
 	</File>
 	<File name="EditTexte.h" open="0" top="0" tabpos="17">
 		<Cursor position="538" topLine="9" />
 	</File>
-	<File name="EditorEvents.cpp" open="0" top="0" tabpos="1">
-		<Cursor position="31651" topLine="502" />
+	<File name="EditorEvents.cpp" open="0" top="0" tabpos="12">
+		<Cursor position="37673" topLine="619" />
 	</File>
 	<File name="EditorEvents.h" open="0" top="0" tabpos="2">
 		<Cursor position="6969" topLine="175" />
@@ -130,26 +130,26 @@
 	<File name="EditorEventsConditions.cpp" open="0" top="0" tabpos="5">
 		<Cursor position="597" topLine="21" />
 	</File>
-	<File name="EditorLayers.cpp" open="0" top="0" tabpos="6">
-		<Cursor position="7344" topLine="146" />
+	<File name="EditorLayers.cpp" open="0" top="0" tabpos="7">
+		<Cursor position="8679" topLine="173" />
 	</File>
 	<File name="EditorLayers.h" open="0" top="0" tabpos="10">
 		<Cursor position="2112" topLine="61" />
 	</File>
-	<File name="EditorObjectList.cpp" open="0" top="0" tabpos="19">
-		<Cursor position="932" topLine="15" />
+	<File name="EditorObjectList.cpp" open="0" top="0" tabpos="17">
+		<Cursor position="22703" topLine="464" />
 	</File>
 	<File name="EditorObjectList.h" open="0" top="0" tabpos="3">
 		<Cursor position="981" topLine="24" />
 	</File>
 	<File name="EditorObjets.cpp" open="0" top="0" tabpos="10">
-		<Cursor position="4078" topLine="79" />
+		<Cursor position="537" topLine="26" />
 	</File>
 	<File name="EditorObjets.h" open="0" top="0" tabpos="18">
 		<Cursor position="1496" topLine="38" />
 	</File>
-	<File name="EditorObjetsGroups.cpp" open="0" top="0" tabpos="17">
-		<Cursor position="544" topLine="10" />
+	<File name="EditorObjetsGroups.cpp" open="0" top="0" tabpos="14">
+		<Cursor position="16597" topLine="344" />
 	</File>
 	<File name="EditorObjetsGroups.h" open="0" top="0" tabpos="1">
 		<Cursor position="248" topLine="0" />
@@ -172,8 +172,8 @@
 	<File name="Extensions.h" open="0" top="0" tabpos="2">
 		<Cursor position="1971" topLine="58" />
 	</File>
-	<File name="Fusion.cpp" open="0" top="0" tabpos="26">
-		<Cursor position="5724" topLine="178" />
+	<File name="Fusion.cpp" open="0" top="0" tabpos="1">
+		<Cursor position="6580" topLine="178" />
 	</File>
 	<File name="Fusion.h" open="0" top="0" tabpos="0">
 		<Cursor position="441" topLine="3" />
@@ -182,31 +182,31 @@
 		<Cursor position="2790" topLine="90" />
 	</File>
 	<File name="Game_Develop_EditorApp.cpp" open="0" top="0" tabpos="8">
-		<Cursor position="3867" topLine="112" />
+		<Cursor position="10894" topLine="305" />
 	</File>
 	<File name="Game_Develop_EditorApp.h" open="0" top="0" tabpos="3">
 		<Cursor position="659" topLine="8" />
 	</File>
 	<File name="Game_Develop_EditorMain.cpp" open="0" top="0" tabpos="6">
-		<Cursor position="2442" topLine="206" />
+		<Cursor position="1388" topLine="59" />
 	</File>
 	<File name="Game_Develop_EditorMain.h" open="0" top="0" tabpos="5">
-		<Cursor position="2261" topLine="70" />
+		<Cursor position="1201" topLine="46" />
 	</File>
 	<File name="GeneratePassword.cpp" open="0" top="0" tabpos="22">
 		<Cursor position="6280" topLine="95" />
 	</File>
-	<File name="GridSetup.cpp" open="0" top="0" tabpos="23">
-		<Cursor position="5354" topLine="74" />
+	<File name="GridSetup.cpp" open="0" top="0" tabpos="9">
+		<Cursor position="5367" topLine="57" />
 	</File>
-	<File name="ImportImage.cpp" open="0" top="0" tabpos="24">
-		<Cursor position="27235" topLine="394" />
+	<File name="ImportImage.cpp" open="0" top="0" tabpos="10">
+		<Cursor position="29134" topLine="422" />
 	</File>
 	<File name="InitialVariablesDialog.cpp" open="0" top="0" tabpos="8">
 		<Cursor position="372" topLine="4" />
 	</File>
-	<File name="MAJ.cpp" open="0" top="0" tabpos="25">
-		<Cursor position="8113" topLine="138" />
+	<File name="MAJ.cpp" open="0" top="0" tabpos="13">
+		<Cursor position="7719" topLine="108" />
 	</File>
 	<File name="MainAide.cpp" open="0" top="0" tabpos="19">
 		<Cursor position="283" topLine="1" />
@@ -224,7 +224,7 @@
 		<Cursor position="9226" topLine="162" />
 	</File>
 	<File name="PlayerUnitTests.cpp" open="0" top="0" tabpos="9">
-		<Cursor position="370" topLine="1" />
+		<Cursor position="6453" topLine="139" />
 	</File>
 	<File name="Portable.cpp" open="0" top="0" tabpos="7">
 		<Cursor position="8493" topLine="156" />
@@ -232,23 +232,23 @@
 	<File name="Preferences.cpp" open="0" top="0" tabpos="27">
 		<Cursor position="41395" topLine="794" />
 	</File>
-	<File name="ProjectManager.cpp" open="0" top="0" tabpos="5">
-		<Cursor position="35496" topLine="811" />
+	<File name="ProjectManager.cpp" open="0" top="0" tabpos="11">
+		<Cursor position="33827" topLine="757" />
 	</File>
 	<File name="ProjectManager.h" open="0" top="0" tabpos="2">
 		<Cursor position="1133" topLine="10" />
 	</File>
-	<File name="RenderDialog.cpp" open="0" top="0" tabpos="5">
-		<Cursor position="949" topLine="21" />
+	<File name="RenderDialog.cpp" open="0" top="0" tabpos="1">
+		<Cursor position="1171" topLine="15" />
 	</File>
 	<File name="RenderDialog.h" open="0" top="0" tabpos="4">
 		<Cursor position="22" topLine="0" />
 	</File>
-	<File name="SceneCanvas.cpp" open="0" top="0" tabpos="23">
-		<Cursor position="541" topLine="9" />
+	<File name="SceneCanvas.cpp" open="0" top="0" tabpos="18">
+		<Cursor position="18540" topLine="465" />
 	</File>
 	<File name="SceneCanvas.h" open="0" top="0" tabpos="16">
-		<Cursor position="1209" topLine="24" />
+		<Cursor position="435" topLine="19" />
 	</File>
 	<File name="SearchEvents.cpp" open="0" top="0" tabpos="10">
 		<Cursor position="1146" topLine="105" />
diff --git a/IDE/ImportImage.cpp b/IDE/ImportImage.cpp
index be227bf63b..07c086d9a5 100644
--- a/IDE/ImportImage.cpp
+++ b/IDE/ImportImage.cpp
@@ -13,7 +13,7 @@
 #include <wx/animate.h>
 #include <wx/filename.h>
 
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 
 
 //(*IdInit(ImportImage)
@@ -359,7 +359,7 @@ void ImportImage::OnFileGIFEditText(wxCommandEvent& event)
 {
     wxAnimation animation;
     if ( animation.LoadFile(FileGIFEdit->GetValue()) )
-        nbImageGIFBt->SetLabel(_("Nombre d'images : ")+st(animation.GetFrameCount()));
+        nbImageGIFBt->SetLabel(_("Nombre d'images : ")+ToString(animation.GetFrameCount()));
     else
         nbImageGIFBt->SetLabel(_("Nombre d'images : ?"));
 }
@@ -382,7 +382,7 @@ void ImportImage::OnDecomposeGIFBtClick(wxCommandEvent& event)
     for (unsigned int i = 0;i<animation.GetFrameCount();++i)
     {
     	wxImage img = animation.GetFrame(i);
-    	img.SaveFile(path+"/"+DecomposeGIFEdit->GetValue()+st(i)+".png", wxBITMAP_TYPE_PNG);
+    	img.SaveFile(path+"/"+DecomposeGIFEdit->GetValue()+ToString(i)+".png", wxBITMAP_TYPE_PNG);
     }
 
     wxLogMessage(_("Décomposition du GIF terminé !"));
@@ -419,7 +419,7 @@ void ImportImage::OnfileRPGEditText(wxCommandEvent& event)
 {
     wxImage image;
     if ( image.LoadFile(fileRPGEdit->GetValue()) )
-        tailleImageRPGEdit->SetLabel(_("Taille d'une image : ")+st(image.GetWidth()/4)+"x"+st(image.GetHeight()/4));
+        tailleImageRPGEdit->SetLabel(_("Taille d'une image : ")+ToString(image.GetWidth()/4)+"x"+ToString(image.GetHeight()/4));
     else
         tailleImageRPGEdit->SetLabel(_("Taille d'une image : ?x?"));
 }
@@ -455,7 +455,7 @@ void ImportImage::OnDecomposeRPGEditClick(wxCommandEvent& event)
             if ( j == 1 ) direc = "L";
             if ( j == 2 ) direc = "R";
             if ( j == 3 ) direc = "U";
-            subImage.SaveFile(path+"/"+decomposeRPGEdit->GetValue()+direc+st(i)+".png", wxBITMAP_TYPE_PNG);
+            subImage.SaveFile(path+"/"+decomposeRPGEdit->GetValue()+direc+ToString(i)+".png", wxBITMAP_TYPE_PNG);
         }
     }
 
@@ -483,38 +483,38 @@ void ImportImage::OnDecomposeSSBtClick(wxCommandEvent& event)
     wxFileName filename(fileSSEdit->GetValue());
     wxString path = filename.GetPath();
 
-    int lineNb = toInt(static_cast<string>(linesSSEdit->GetValue()));
+    int lineNb = ToInt(static_cast<string>(linesSSEdit->GetValue()));
     if ( lineNb <= 0 )
     {
         wxLogWarning(_("Le nombre de ligne est invalide : Le minimum est une ligne."));
         return;
     }
 
-    int columnNb = toInt(static_cast<string>(columnsSSEdit->GetValue()));
+    int columnNb = ToInt(static_cast<string>(columnsSSEdit->GetValue()));
     if ( columnNb <= 0 )
     {
         wxLogWarning(_("Le nombre de colonnes est invalide : Le minimum est une colonne."));
         return;
     }
 
-    int origineX = toInt(static_cast<string>(origineXEdit->GetValue()));
-    int origineY = toInt(static_cast<string>(origineYEdit->GetValue()));
+    int origineX = ToInt(static_cast<string>(origineXEdit->GetValue()));
+    int origineY = ToInt(static_cast<string>(origineYEdit->GetValue()));
 
-    int width = toInt(static_cast<string>(widthSSEdit->GetValue()));
-    int height = toInt(static_cast<string>(heightSSEdit->GetValue()));
+    int width = ToInt(static_cast<string>(widthSSEdit->GetValue()));
+    int height = ToInt(static_cast<string>(heightSSEdit->GetValue()));
     if ( width <= 0 || height <= 0)
     {
         wxLogWarning(_("La taille d'un sprite est invalide."));
         return;
     }
 
-    int spaceH = toInt(static_cast<string>(spaceHSSEdit->GetValue()));
+    int spaceH = ToInt(static_cast<string>(spaceHSSEdit->GetValue()));
     if ( spaceH < 0 )
     {
         wxLogWarning(_("L'espacement horizontal est invalide ( doit être supérieur ou égal à 0 )."));
         return;
     }
-    int spaceV = toInt(static_cast<string>(spaceVSSEdit->GetValue()));
+    int spaceV = ToInt(static_cast<string>(spaceVSSEdit->GetValue()));
     if ( spaceV < 0 )
     {
         wxLogWarning(_("L'espacement vertical est invalide ( doit être supérieur ou égal à 0 )."));
@@ -534,7 +534,7 @@ void ImportImage::OnDecomposeSSBtClick(wxCommandEvent& event)
             imageRect.SetWidth(width);
             imageRect.SetHeight(height);
 
-            image.GetSubImage(imageRect).SaveFile(path+"/"+decomposeSSEdit->GetValue()+"l"+toString(line)+"c"+toString(column)+".png", wxBITMAP_TYPE_PNG);
+            image.GetSubImage(imageRect).SaveFile(path+"/"+decomposeSSEdit->GetValue()+"l"+ToString(line)+"c"+ToString(column)+".png", wxBITMAP_TYPE_PNG);
 
             X += width + spaceH;
         }
diff --git a/IDE/MAJ.cpp b/IDE/MAJ.cpp
index 26141b66b5..37a6526aa8 100644
--- a/IDE/MAJ.cpp
+++ b/IDE/MAJ.cpp
@@ -10,7 +10,7 @@
 //*)
 #include "CheckMAJ.h"
 #include "tinyxml.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/VersionWrapper.h"
 #include <wx/log.h>
 #include <wx/mimetype.h>
@@ -141,7 +141,7 @@ void MAJ::OnVerifMAJBtClick(wxCommandEvent& event)
     int Revision = 0;
     elem->QueryIntAttribute( "Revision", &Revision );
 
-    versionMAJTxt->SetLabel(st(Major)+"."+st(Minor)+"."+st(Build)+"."+st(Revision));
+    versionMAJTxt->SetLabel(ToString(Major)+"."+ToString(Minor)+"."+ToString(Build)+"."+ToString(Revision));
 
     elem = hdl.FirstChildElement().FirstChildElement("Info").Element();
 
diff --git a/IDE/PlayerUnitTests.cpp b/IDE/PlayerUnitTests.cpp
index 81b7cc534a..dc95a48338 100644
--- a/IDE/PlayerUnitTests.cpp
+++ b/IDE/PlayerUnitTests.cpp
@@ -169,8 +169,6 @@ TEST( Player, conditionsMove )
     condition.SetParameters(params);
     condition.SetLocal(false);
     condition.SetInversion(false);
-    Evaluateur eval(game, scene);
     ObjectsConcerned objectsConcerned(&scene.objectsInstances, &scene.objectGroups);
-    eval.SetObjectsConcerned(&objectsConcerned);
 
 }
diff --git a/IDE/ProjectManager.cpp b/IDE/ProjectManager.cpp
index 2ba1d94729..03aec66885 100644
--- a/IDE/ProjectManager.cpp
+++ b/IDE/ProjectManager.cpp
@@ -244,7 +244,7 @@ void ProjectManager::Refresh()
 
         //Extensions
         gdTreeItemGameData * extensionsItemData = new gdTreeItemGameData("Extensions", "", mainEditor.games[i].get());
-        projectsTree->AppendItem(projectItem, _("Extensions") + " (" + toString(mainEditor.games[i]->extensionsUsed.size()) + ")", 3 ,3, extensionsItemData);
+        projectsTree->AppendItem(projectItem, _("Extensions") + " (" + ToString(mainEditor.games[i]->extensionsUsed.size()) + ")", 3 ,3, extensionsItemData);
     }
 
     projectsTree->ExpandAll();
@@ -309,7 +309,7 @@ void ProjectManager::OnprojectsTreeItemActivated(wxTreeEvent& event)
     {
         EditExtensionsOfGame(game);
 
-        projectsTree->SetItemText(selectedItem, _("Extensions") + " (" + toString(game->extensionsUsed.size()) + ")");
+        projectsTree->SetItemText(selectedItem, _("Extensions") + " (" + ToString(game->extensionsUsed.size()) + ")");
     }
 }
 
@@ -595,7 +595,7 @@ void ProjectManager::AddSceneToGame(Game * game)
     int i = 1;
     while(find_if(game->scenes.begin(), game->scenes.end(), bind2nd(SceneHasName(), newSceneName)) != game->scenes.end())
     {
-        newSceneName = _("Nouvelle scène") + " " + toString(i);
+        newSceneName = _("Nouvelle scène") + " " + ToString(i);
         ++i;
     }
 
@@ -790,7 +790,7 @@ void ProjectManager::OnpasteSceneMenuItemSelected(wxCommandEvent& event)
     int i = 1;
     while(find_if(game->scenes.begin(), game->scenes.end(), bind2nd(SceneHasName(), newSceneName)) != game->scenes.end())
     {
-        newSceneName = _("Copie de") + " " + newScene->GetName() + " " + toString(i);
+        newSceneName = _("Copie de") + " " + newScene->GetName() + " " + ToString(i);
         ++i;
     }
 
diff --git a/IDE/SceneCanvas.cpp b/IDE/SceneCanvas.cpp
index d2ddb7a976..d1f74e99a4 100644
--- a/IDE/SceneCanvas.cpp
+++ b/IDE/SceneCanvas.cpp
@@ -12,8 +12,8 @@
 #include <iostream>
 #include <sstream>
 #include "GDL/Chercher.h"
-#include "GDL/algo.h"
-#include "GDL/StdAlgo.h"
+#include "GDL/CommonTools.h"
+#include "GDL/CommonTools.h"
 #include "EditOptionsPosition.h"
 #include <wx/log.h>
 #include <wx/scrolbar.h>
@@ -334,8 +334,8 @@ void SceneCanvas::OnMotion( wxMouseEvent &event )
     {
         mouseXInScene = static_cast<int>(sf::RenderWindow::ConvertCoords(scene.input->GetMouseX(), 0, scene.GetLayer("").GetCamera(0).GetSFMLView()).x);
         mouseYInScene = static_cast<int>(sf::RenderWindow::ConvertCoords(0, scene.input->GetMouseY(), scene.GetLayer("").GetCamera(0).GetSFMLView()).y);
-        Xstr = st( mouseXInScene );
-        Ystr = st( mouseYInScene );
+        Xstr =ToString( mouseXInScene );
+        Ystr =ToString( mouseYInScene );
 
         wxLogStatus( wxString( _( "Position " ) ) + Xstr + wxString( _( ";" ) ) + Ystr + wxString( _( ". ( Calque de base, Caméra 0 )" ) ) );
     }
@@ -344,8 +344,8 @@ void SceneCanvas::OnMotion( wxMouseEvent &event )
         mouseXInScene = static_cast<int>(sf::RenderWindow::ConvertCoords(scene.input->GetMouseX(), 0).x);
         mouseYInScene = static_cast<int>(sf::RenderWindow::ConvertCoords(0, scene.input->GetMouseY()).y);
 
-        Xstr = st( mouseXInScene );
-        Ystr = st( mouseYInScene );
+        Xstr =ToString( mouseXInScene );
+        Ystr =ToString( mouseYInScene );
 
         wxLogStatus( wxString( _( "Position " ) ) + Xstr + wxString( _( ";" ) ) + Ystr + wxString( _( ". SHIFT pour sélection multiple, clic droit pour plus d'options." ) ) );
     }
@@ -480,9 +480,9 @@ void SceneCanvas::AddObjetSelected(float x, float y)
     ObjSPtr newObject = boost::shared_ptr<Object> ();
 
     if ( IDsceneObject != -1 ) //We check first scene's objects' list.
-        newObject = extensionManager->CreateObject(sceneEdited.initialObjects[IDsceneObject]);
+        newObject = sceneEdited.initialObjects[IDsceneObject]->Clone();
     else if ( IDglobalObject != -1 ) //Then the global object list
-        newObject = extensionManager->CreateObject(gameEdited.globalObjects[IDglobalObject]);
+        newObject = gameEdited.globalObjects[IDglobalObject]->Clone();
 
     if ( newObject == boost::shared_ptr<Object> () )
     {
diff --git a/IDE/SceneCanvas.h b/IDE/SceneCanvas.h
index e158633430..9bfb886f06 100644
--- a/IDE/SceneCanvas.h
+++ b/IDE/SceneCanvas.h
@@ -17,7 +17,7 @@
 #include "GDL/Collisions.h"
 #include "GDL/Event.h"
 #include "GDL/Chercher.h"
-#include "GDL/algo.h"
+#include "GDL/CommonTools.h"
 #include "GDL/Game.h"
 #include "GDL/RuntimeScene.h"
 #include "GDL/ImageManager.h"
diff --git a/IDE/version.h b/IDE/version.h
index bf63efe900..719c387599 100644
--- a/IDE/version.h
+++ b/IDE/version.h
@@ -4,7 +4,7 @@
 namespace AutoVersion{
 	
 	//Date Version Types
-	static const char DATE[] = "12";
+	static const char DATE[] = "17";
 	static const char MONTH[] = "05";
 	static const char YEAR[] = "2010";
 	static const char UBUNTU_VERSION_STYLE[] = "10.05";
@@ -16,14 +16,14 @@ namespace AutoVersion{
 	//Standard Version Type
 	static const long MAJOR = 1;
 	static const long MINOR = 3;
-	static const long BUILD = 9594;
-	static const long REVISION = 48340;
+	static const long BUILD = 9598;
+	static const long REVISION = 48355;
 	
 	//Miscellaneous Version Types
-	static const long BUILDS_COUNT = 21434;
-	#define RC_FILEVERSION 1,3,9594,48340
-	#define RC_FILEVERSION_STRING "1, 3, 9594, 48340\0"
-	static const char FULLVERSION_STRING[] = "1.3.9594.48340";
+	static const long BUILDS_COUNT = 21486;
+	#define RC_FILEVERSION 1,3,9598,48355
+	#define RC_FILEVERSION_STRING "1, 3, 9598, 48355\0"
+	static const char FULLVERSION_STRING[] = "1.3.9598.48355";
 	
 	//These values are to keep track of your versioning state, don't modify them.
 	static const long BUILD_HISTORY = 0;