var RequestURL = document.referrer; 
 var w = window; var requestURL = w.RequestURL; requestURL = escape(requestURL);document.write("<a href='http://union3.xenw.com/tj/cpc.aspx?Ad_ID=576&site_ID=2594&RequestURL="+escape(requestURL)+"' target='_blank'><img border='0' src='http://union3.xenw.com//xenwFiles/Img/Min20091224508.gif' alt='招商广告（950×170）'  /></a>");