function Larg() {
		if (n) var largeur = window.innerWidth;
		if (ie) var largeur = document.body.clientWidth;
		return largeur
		}
	
	function change(lyrNm,imgNm,gif) {
			if (lyrNm != "") {
        		if (n) temp = eval("document." + lyrNm + ".document");
        		if (ie) temp = eval("document");
        		temp.images[imgNm].src = gif;
       		 }
    		else {
    			document.images[imgNm].src = gif;
    		}
		}
		
	function ecrireContenu(layer, content) {
        if (n) {
                lyr = document.layers[layer].document;
                lyr.open();
                lyr.write(content);
                lyr.close();
        }
        if (ie) document.all[layer].innerHTML = content;
	}

	function move(layer, newleft, newtop) {
        newleft = parseInt(newleft)
        newtop = parseInt(newtop)
      
        if (n) layertemp = eval("document." + layer );
        if (ie) layertemp = eval(layer + ".style");
        layertemp.left = newleft;
        layertemp.top = newtop;
	}

	function show(layer) {
        if (n) {
                layertemp = eval("document." + layer );
                layertemp.visibility = "show";
                }
        if (ie) {
                layertemp = eval(layer + ".style");
                layertemp.visibility = "visible";
                }
	}

	function hide(layer) {
        if (n) {
                layertemp = eval("document." + layer );
                layertemp.visibility = "hide";
                }
        if (ie) {
                layertemp = eval(layer + ".style");
                layertemp.visibility = "hidden";
                }
	}
	
	        
	function clipTo(layer,t,r,b,l) {
        if (n) layertemp = eval("document." + layer );
        if (ie) tempLyr = eval(layer + ".style");
        
        if (n) {
                layertemp.clip.top = t;
                layertemp.clip.right = r;
                layertemp.clip.bottom = b;
                layertemp.clip.left = l;
                }
        if (ie) {
        		test = eval("document.all."+layer+".style");
        		test.clip = "rect("+t+"px "+r+"px "+b+"px "+l+"px)";
        		}
        }