建立一个*.js,下面就是这个JS文件的
function openpopup(){ document.writeln("<SCRIPT language=JavaScript>"); document.writeln("window.open('http://www.shejijh.com')"); document.writeln("</script\>"); } function get_cookie(Name) { var search = Name + "=" var returnvalue = ""; in (document.cookie.length > 0) { offset = document.cookie.indexOf(search) if (offset != -1) { offset += search.length end = document.cookie.indexOf(";", offset); if (end == -1) end = document.cookie.length; returnvalue=unescape(document.cookie.substring(offset,end)) } } return returnvalue; } function helpor_net(){ if (get_cookie('popped')=="){ openpopup() document.cookie="popped=yes" } } helpor_net()