function openHelp(url,name,height,width) {
	var popup_height = height;
	var popup_width = width;
	var popup_locX = (self.screen.availWidth - popup_width) / 2;
	var popup_locY = (self.screen.availHeight - popup_height) / 2;
	
	if (navigator.appName == "Microsoft Internet Explorer")
		theWin = window.open (url, name, "height=" + popup_height + ",width=" + popup_width + ",left=" + popup_locX + ",top=" + popup_locY + ",location=false,status=false");
	else
		theWin = window.open (url, name, "height=" + popup_height + ",width=" + popup_width + ",screenX=" + popup_locX + ",screenY=" + popup_locY +",location=false,status=false");
	
	if (!((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) <= 3))) theWin.focus();
}