var ns = (navigator.appName=="Netscape" && parseInt(navigator.appVersion)>=4)?true:false
var ie = (navigator.appName=="Microsoft Internet Explorer" && parseInt(navigator.appVersion)>=4)?true:false
var ns6 = (document.getElementById&&!document.all)

var safari = new String(navigator.appVersion);
var expr=/safari/gi;
Saf = safari.search(expr);

var navigsaf = (Saf!=-1)?true:false;

function getLayer(name) {
  if (ie)
    return eval('document.all.' + name);
	if (ns6)
		return document.getElementById(name);
  return null;
}

function getHeight(){
	if(ns6) haut=window.innerHeight;
	else if (ie  && navigator.appVersion.indexOf("Macintosh") != -1) haut =document.body.offsetHeight-15;
	else haut = document.documentElement.clientHeight;
	
	return haut;
}

function ajust(div1,div2,menu){
	layer1=getLayer(div1);
	layer2=getLayer(div2);
	if(layer1.offsetHeight>layer2.offsetHeight+(menu+30)){
		layer2.style.height=layer1.offsetHeight-menu+"px";
	}
	else{
		layer1.style.height=layer2.offsetHeight+menu+30+"px";
		layer2.style.height=layer2.offsetHeight+30+"px";
	}
	
}