function open_popup(ip) {
	var h = 490;
	var l = 490;
	var hauteur = Math.round((screen.availHeight - h)/2);
	var largeur = Math.round((screen.availHeight - l)/2);
	window.open("http://webcallback.axialist.net/popup.php?ip="+ip, null, width="+l+", height="+h", directories=0,location=0,menubar=0,resizable=0,scrollbars=0)
}
<!--
window.onload=heightEqualizer_2
//-->