var vis = new Array();
function MM_findObj(n, d) { //v4.0
 var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
   d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
 if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
 for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
 if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
 var i,p,v,obj,args=MM_showHideLayers.arguments;
 for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
   if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v='hide')?'none':v; }
   obj.display=v; }
}
function swap_couche(couche){
		
      obj=MM_findObj(couche);
	   if (obj.style == 'show')
	   {
               
                MM_showHideLayers('Layer'+couche,'','hide');
                vis[couche] = 'hide';
        } else {
                MM_showHideLayers('Layer'+couche,'','show');
                vis[couche] = 'show';
        }
		
}
function swap_couche2(couche){
		
        if (vis[couche] == 'show'){
               
                MM_showHideLayers('Layer'+couche,'','hide');
                vis[couche] = 'hide';
        } else {
                MM_showHideLayers('Layer'+couche,'','show');
                vis[couche] = 'show';
        }
}
function fermeAll(){           
	         MM_showHideLayers('Layerpartie1','','hide');
			 MM_showHideLayers('Layerpartie2','','hide');
			 MM_showHideLayers('Layerpartie3','','hide');
			 MM_showHideLayers('Layerpartie4','','hide');
        }