function footer(div1, div2){
	div1=getLayer(div1);
	div2=getLayer(div2);
	entete=getLayer("top");
	bas=getLayer("footer");
	
	haut=getHeight();
	if(haut-entete.offsetHeight>(div1.offsetHeight+bas.offsetHeight) && haut-entete.offsetHeight>(div2.offsetHeight+bas.offsetHeight))
	{
		
		div1.style.height = haut-(entete.offsetHeight)-10+"px";
		div2.style.height = haut-(entete.offsetHeight)+"px";
	}
	else{
		if(div1.offsetHeight>=div2.offsetHeight){
			bas.style.top=div1.offsetHeight+entete.offsetHeight+10+"px";
			div1.style.height=div1.offsetHeight+bas.offsetHeight+"px";
			div2.style.height=div1.offsetHeight+"px";
			
		}
		else{
			bas.style.top=div2.offsetHeight+entete.offsetHeight+10+"px";
			div2.style.height=div2.offsetHeight+bas.offsetHeight+"px";
			div1.style.height=div2.offsetHeight+"px";
			
		}
	}
	bas.style.visibility="visible";
}

var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 &&
              parseFloat(navigator.appVersion) >= 4 &&  parseFloat(navigator.appVersion) < 5) ? 1 : 0;
var isMinIE4 = (document.all) ? 1 : 0;
var isMinIE5 = (isMinIE4 && navigator.appVersion.indexOf("5.") >= 0) ? 1 : 0;
var NS6 = (document.getElementById&&!document.all)




function getLayer(name) {
  if (isMinNS4)
    return findLayer(name, document);
  if (isMinIE4)
    return eval('document.all.' + name);
	if (NS6)
		return document.getElementById(name);
  return null;
}

function getHeight(){
	if(NS6) haut=window.innerHeight;
	else if (isMinIE5 && navigator.appVersion.indexOf("Macintosh") != -1) haut =document.body.offsetHeight-15;
	else haut = document.documentElement.clientHeight;
	
	return haut;
}