function popup(page,ht,lg,nom){
	x=((screen.width-lg)/2)-6;	
	y=((screen.height-ht)/2)-26;
	var popup = window.open(page,nom,"width="+lg+",height="+ht+",left="+x+",top="+y+",toolbar=0,scrollbars=no");
}

function popupG(page,ht,lg,nom){
	x=(screen.width-lg)/2;
	y=(screen.height-ht)/2;
	var popup = window.open(page,nom,"width="+lg+",height="+ht+",left="+x+",top="+y+",toolbar=0,scrollbars=yes");
}

<!-- Cas si l'ordinateur est un PC -->

if (navigator.platform.indexOf("Win")  != -1) {
		if ((navigator.appName=="Netscape") && (parseInt(navigator.appVersion)==4)){
			{
				document.write("<link rel='stylesheet' href='styles/ns.css'>");
			}
		}
		else{
			document.write("<link rel='stylesheet' href='styles/styles.css'>");
			}
		}
<!-- Cas d'un autre ordinateur -->
else if (navigator.platform.indexOf("Win") == -1) {
	document.write("<link rel='stylesheet' href='styles/mac.css'>");
}

var isN6 = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Mozilla") != -1) && (parseFloat(navigator.appVersion) >= 5) && (navigator.javaEnabled())) ? true : false;




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')?'visible':(v='hide')?'hidden':v; }
     obj.visibility=v; }
}

function pdf(code){
	var page = "produit.php?nompdf=" + code;
	var popup = window.open(page,"_blank");
}