动态加载js文件 document.createElement_javascript技巧

var Rash=true;
var msg="";

function norash()
{
if (confirm("确定要取消吗"))
Rash=false;
}

 function rashit()
{
setInterval('getrss()',Inttime);
}

function getrss()
{
        if (Rash==true)
        {
        head=document.getElementsByTagName('head').item(0);
        script=document.createElement('script');
        script.src='INCLUDE/AutoUpdate.asp';
        script.type='text/javascript';
        script.defer=true;
        void(head.appendChild(script));
        window.status=msg;
        }
}
rashit();