PopupCentrer = function(page,largeur,hauteur,options) 
{
    window.open(page,"yourOpinion","width="+largeur+",height="+hauteur+","+options);
}
function IEDetected(){
	var Browser=navigator.userAgent.toLowerCase();
	var Opera=/opera/;
	var IE=/msie [0-9]{1}/;
	
	return IE.test(Browser) && !Opera.test(Browser);
}