function ouvrirUrl(url){
    if (document.all){
         // IE version
         var xml = new ActiveXObject("Microsoft.XMLHTTP");
         // older versions (IE4 and some IE5.0) might be using MSXML2.XMLHTTP.4.0
         xml.Abort();
		 xml.Open( "GET", url + "&" + new Date().getTime(), false);
         xml.Send()
    }else{
     // Mozilla/Netscape 6+ version
       var xml=new XMLHttpRequest();
       xml.open("GET",url,false);
       xml.send(null);
    }
	return xml.responseText;
}