function core_url () {
	url = 'http://'+top.location.hostname+'/services/';
	return url;
}

function gcn_msg (obj, style, txt) {
	if (txt.length > 0) {
		$(obj).show();
		$(obj).attr('class', style);
		$(obj).html(txt);
	} else {
		$(obj).hide();
	}
}

function popup_window (url) {
	var goPopX = (screen.width/2)-477;
	var goPopY = (screen.height/2)-327;
	var location = "left="+goPopX+",top="+goPopY;
	window.open(url, "window", "width=954,height=654,menubar=no,"+location);
}
function popup_video (url) {
	url = 'http://www.parallels.com/doc/tutorials/sitebuilder/sitebuilder4.0/sitebuilder4_'+url+'.htm';
	popup_window(url);
}