function checkNavigator()
{
	var IE = false, FIREFOX  = false, AUTRE = false;
	var intSplitStart = navigator.userAgent.indexOf("(",0);
	var intSplitEnd = navigator.userAgent.indexOf(")",0);
	var strChStart = navigator.userAgent.substring(0,intSplitStart);
	var strChMid = navigator.userAgent.substring(intSplitStart, intSplitEnd);
	var strChEnd = navigator.userAgent.substring(strChEnd);
	
	if(strChMid.indexOf("MSIE") != -1)
	 IE = true;
	else if(strChEnd.indexOf("Firefox") != -1)
	 FIREFOX = true;
	else{
	 AUTRE = true;
	document.getElementById('info_navigateur').style.visibility ='visible';
	}
}