var dt = new Date();
var hr = dt.getSeconds();
hr=hr%2;
if (hr==0){ document.write("<a href=http://www.chinastandard.com.cn/ target='_blank'><img src=http://www.chinastandard.com.cn/img/banner.gif border=0 color=000000></a>"); }
if (hr==1){ document.write("<a href=http://www.chinastandard.com.cn/ target='_blank'><img src=http://www.chinastandard.com.cn/img/banner.gif border=0 color=000000></a>"); }