javastr="";
javastr=javastr+"";
<!-- Begin
var how_many_ads = 1;				//显示广告条的数目
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
//if (ad==1) {						//
//url="http://www.chinaacc.com/zhuanti/zcbk/index.asp";
//banner="http://www.chinaacc.com/images/banner/bbs_ztc.gif";
//width="595";
//height="68";
//}
if (ad==1) {						//
url="http://www.chnedu.com/";
banner="/images/zb.gif";
width="190";
height="119";
}
document.write('<a href=\"' + url + '\" target=\"_blank\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('border=0></a>');
// End -->
document.write(javastr);