function Ajuste_DIV(){
	var O_Srce = document.getElementById('center');
	var O_Srce2 = document.getElementById('menu_droite');
	
	
	var O_Dest = document.getElementById('right_gradient');
	var O_Dest2 = document.getElementById('left_gradient');
	var O_Dest3 = document.getElementById('img_left_gradient');
	var O_Dest4 = document.getElementById('img_right_gradient');
	
	if (document.getElementById('center_box_center_ext')) {
	var O_Dest5 = document.getElementById('center_box_center_ext');
	}
	
	if(navigator.appName!='Microsoft Internet Explorer'){
		
		if (O_Dest5) {
		O_Dest5.style.height = parseInt( O_Srce2.offsetHeight)- '400' +'px' ;
		O_Dest3.style.height =  '300' +'px' ;
		O_Dest4.style.height =  '300' +'px' ;
		
		}else{
		O_Dest.style.height = parseInt( O_Srce.offsetHeight)- '950' +'px' ;
		
		O_Dest2.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		
		O_Dest3.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		O_Dest4.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		}
	
		
	}
	else
	{	
		if (O_Dest5) {
			O_Dest5.style.height = parseInt( O_Srce2.offsetHeight)- '400' +'px' ;
			O_Dest3.style.height =  '300' +'px' ;
		O_Dest4.style.height =  '300' +'px' ;
			
		}else{
			O_Dest.style.height = parseInt( O_Srce.offsetHeight)- '950' +'px' ;
		
			O_Dest2.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		
			O_Dest3.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		
		O_Dest4.style.height = parseInt( O_Srce.offsetHeight)- '800' +'px' ;
		}
	
		
		
		
		
		

	}
}