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

function menu(nom1){
	layer1=getLayer(nom1)
	
	layer1.className = "done";

}

function getLayer(name) {

  if (isMinIE4)
    return eval('document.all.' + name);
	if (NS6)
		return document.getElementById(name);
  return null;
}

function getHeight(){
	if(NS6) haut=window.innerHeight;
	else if (isMinIE4  && navigator.appVersion.indexOf("Macintosh") != -1) haut =document.body.offsetHeight+5;
	else haut = document.documentElement.clientHeight;
	
	return haut;
}

function etire(){
	contenu=getLayer('contenant');
	layerd=getLayer('droit');
	layerg=getLayer('gauche');
	layerc=getLayer('centre');
	layertop=getLayer('entete');
	bas=getLayer('footer')
	
	haut=getHeight();
	
	if(layerd.offsetHeight>=layerg.offsetHeight && layerd.offsetHeight>=layerc.offsetHeight){
			
			layerc.style.height=layerd.offsetHeight+15+"px";
	}
	else if(layerc.offsetHeight>=layerg.offsetHeight && layerc.offsetHeight>=layerd.offsetHeight){
			layerc.style.height=layerc.offsetHeight+20+"px";
	}
	else{
		layerc.style.height=layerg.offsetHeight+15+"px";
	}

	if(haut>contenu.offsetHeight){
		contenu.style.height=haut-(bas.offsetHeight+20)+"px";
	}

	
}

function popupRealisation(id) {
  var winName = "realisation";
  var URL = "popup-realisation.php?id="+id;
  var features = "scrollbars=yes,width=420,height=450";
  PopupRealisation=window.open(URL,winName,features);
  PopupRealisation.focus();
}