function yahoo_ad(width){
	
	document.write('<link href="http://channel.u21.hk/yahoo_ad/yahoo_ad_style.css" rel="stylesheet" type="text/css">');

	document.write('<table width="'+ width +'" border="0" cellpadding="5" cellspacing="0" bgcolor="#FFFFFF"><tr>');
	var i=6;
	while(i < zSr.length)
	{
		var descr = zSr[i++]; // listing description
		var unused1 = zSr[i++]; // (ignore)
		var clickURL = zSr[i++]; // listing link
		var title = zSr[i++]; // listing title
		var sitehost = zSr[i++]; // advertiser’s domain name
		var unused2 = zSr[i++]; // (ignore)
		var cell_width = 100/zSr.length;
		document.write('<td width="'+cell_width+'%" valign="top">');
		document.write('<a href="' + clickURL + '" target="_blank" class="yahoo_ad_link1">'+ title + '</a><br>');
		document.write('<span class="yahoo_ad_text">' + descr + '</span><br>');
		document.write('<a href="http://' + sitehost + '" target="_blank" class="yahoo_ad_link2">' + sitehost + '<a><br>');
		document.write('</td>');
	}
		document.write('</tr>');
		document.write('<tr><td colspan="'+zSr.length+'" align="right"><a href="http://hk.searchmarketing.yahoo.com/?o=HK0168" target="_blank" class="yahoo_ad_link3"><img src="http://www.u21.hk/u21include/images/yahoo_logo.jpg" border=0></a> </td>');
		document.write('</tr></table>');

}