function recupererIdEx(){
	// Création d'un nouveau tableau de données
	var qsParam = new Array();
	var queryString = window.location.search.substring(1);
	var params = queryString.split('&');
	
	for (var i=0; i<params.length; i++) {
		var pos = params[i].indexOf('=');
		if (pos > 0) {
			var key = params[i].substring(0,pos);
			var val = params[i].substring(pos+1);
			qsParam[key] = val;
		}
	}
	
	var paramIdEx=qsParam['idEx'];
	return (paramIdEx);
}

function getIXLayer(name) {
	if (isMinIE4)
		return document.all[name];
		
	if (NS6)
		return document.getElementById(name);
	return null;
}

function showimg(pUrl, pId, uneLargeurImage){
	obj=getIXLayer(pId);

	//Trouve la position Y de l'image dans la page
	var curtop = 0;
	if (obj.offsetParent) {
		while (1) {
			curtop+=obj.offsetTop;
			if (!obj.offsetParent) {
				break;
			}
			obj=obj.offsetParent;
		}
	} else if (obj.y) {
		curtop+=obj.y;
	}
	
	bigimg= getIXLayer('grandeimg_'+pId);
	acouverture= getIXLayer('petiteimg_'+pId);
	acouverture.style.visibility="hidden";	
	
	//Indique la position Y à laquelle la grosse image doit s'afficher.
	bigimg.style.top=curtop+"px";
	bigimg.style.left=(200+(500-uneLargeurImage))+"px";
	bigimg.style.width=uneLargeurImage+"px";
	
	bigimg.innerHTML='<div class="reduire"><a href="javascript:hideimg(\''+pId+'\');" class="reduire" style="color:#FFFFFF;">Click to reduce</a></div><a href="javascript:hideimg(\''+pId+'\');"><img src="'+pUrl+'" alt="" border="0" /></a>';
}

function hideimg(pId){
	bigimg= getIXLayer('grandeimg_'+pId);
	bigimg.innerHTML='';
	bigimg.style.visibily="hidden";
	
	bigimg.style.width="auto";
	
	smallimg = getIXLayer('petiteimg_'+pId);
	smallimg.style.visibility='visible';
}