function Clk(el, ad)
{
	if(document.images) {
		(new Image()).src = "http://click.csdn.net/csdnClick.aspx?ad=" + ad + "&url=" + escape(el.href);
	}
	return true;
}

function Clk2(el, ad)
{
	if(document.images) {
		(new Image()).src = "http://tracker.csdn.net/VisitTracker.aspx?aduser=" + ad ;
	}
	return true;
}