小弟能力有限，求JS高人帮忙，请谢进的!!

由于小弟对于JavaScript，还是认识潜的，想请高人帮忙，怎样可以修改，令到以下的上传进程，当上传物件到100%成功，弹出新的窗口，取得分享的连接。谢谢先的!!<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<title>File Upload Progress</title>
<Script language="JavaScript">
var interval = null;
var pause=1000;
var time_start = (new Date()).getTime();
var total=0;
var errors=0;
var size_old;
function $(x){return document.getElementById(x)}
function xset(id,value)
{
  if($(id))$(id).innerHTML = value;
}
function convertSeconds(seconds)
{
    var secs = seconds % 60;
var mins = ((seconds - secs) % 3600) / 60;
var hours = ((seconds - secs - mins*60) % 86400) / 3600;
    if(hours>0)
    {
        return hours+' hours '+mins+' minutes';
    }
    else if(mins>0)
    {
        return mins+' minutes '+secs+' seconds';
    }
    else
    {
        return secs+' seconds';
    }
}
function convertSize(size)
{
    if (size > 1024*1024*1024) {
            size = Math.round(size/(1024*1024*1024)*10)/10 + " Gb";
    } else if (size > 1024*1024) {
            size = Math.round(size/(1024*1024)*10)/10+'';
            if(!size.match(/\./))size+='.0';
            size+=' Mb';
    } else if(size > 1024) {
            size = Math.round(size/1024*10)/10 + " Kb";
    } else {
            size = size + " Bytes";
    }
    return size;
}
function SP(cursize,totalsize,speed,estimate,files)
{
    var percent = parseInt(100*parseFloat(cursize)/parseFloat(totalsize));
    $('upload_status').style.width = percent+'%';
    xset('percent', percent+'%' );
    xset('cursize', convertSize(cursize) );
    xset('totalsize', convertSize(totalsize) );
xset('speed',speed);
xset('estimate', convertSeconds(estimate) );
}function jah(uid)
{
    if(errors>15){window.clearTimeout(interval);}
    var req;
    if(window.XMLHttpRequest)
    {
        req = new XMLHttpRequest();
    }
    else if (window.ActiveXObject)
    {
        try {req = new ActiveXObject("Msxml2.XMLHTTP");} catch(e)
        {
         try {req = new ActiveXObject("Microsoft.XMLHTTP");} catch(e) {return 0;}
        }
    }
    else {return 0;} var speed = 0;
var time_left =0;
req.open("GET", uid+".html?"+Math.random(), 1);
req.onreadystatechange = function()
    {
if(req.readyState == 4)
        {
            if (req.status == 200)
            {
                var res = req.responseText;
                if(res==''){ errors+=1;window.setTimeout(function (){jah(uid);},100); }
                if(!res.match(/^new.+\)$/)){errors+=1;return true;}
var upload = eval(res);
if (upload.state == 'uploading')
                {
                    if(upload.received==size_old)
                    {
                        errors+=1;
                    }
                    else
                    {
                        size_old=upload.received;
                        errors=0;
                    }
                    if(total>upload.size)
                    {
                        SP(total, total, 0, 0);
                        $('progress_info').style.display='none';
                        $('msg').innerHTML = 'Generating links...';
     return;
                    }
                    speed = 1000*upload.received / ((new Date()).getTime() - time_start);
est = Math.round( (upload.size-upload.received)/speed );
speed = Math.round(speed / 1024);
                    if(!total){total=upload.size;$('progress_info').style.display='block';$('msg').innerHTML='';}
                    SP(upload.received, upload.size, speed, est);
}
                else if (upload.state == 'done')
                {
    SP(upload.size, upload.size, 0, 0);
                    $('progress_info').style.display='none';
                    $('msg').innerHTML = 'Generating links...';
window.clearTimeout(interval);
}
                else if (upload.state == 'error')
                {
                    $('msg').innerHTML = upload.msg;
window.clearTimeout(interval);
                    loc = top.window.location+'';
                    top.location = loc.split('?')[0] + '?msg='+upload.msg;
}
}
            else
            {
                errors+=1;
            }
}
};
req.send("");
};
var aa = location.search.substring(1).split('=');
var uid = aa[0];
var site_url = 'http://'+aa[2]+'/?'+Math.random();
window.onload=function(){xset('fnames',unescape(aa[1]));}
interval = window.setInterval(function (){jah(uid);},pause);
</Script>
<Style>
body  {background-color:red; font: 13px Arial; padding: 2px;}
a {color:#44b;text-decoration:none;}
#onoff {width:90%;text-align:right;color:#777;font-size:11px;}
#bar1 {width:90%;position:relative;line-height:1em;text-align: left;border: 1px solid #a3a3a3; background-color: #f6f6f6; margin-bottom:5px;}
#upload_status {height: 1.5em; width: 0%; background-color: #c9c9c9;}
#bar2 {position: absolute; text-align: center; padding-top: .25em;width:100%;top:0;left:0;font-weight:bold;}
#msg {margin-top:15px;font-weight:bold;font-style:italic;}
#progress_info {display:none;}
</Style>
</head>
<BODY topmargin=3 leftmargin=0 MARGINHEIGHT=0 MARGINWIDTH=0>
<Center><div id="onoff">progress <a href="#" title="on" onClick="if(this.innerHTML=='on'){this.innerHTML='off';window.clearTimeout(interval);}else{this.innerHTML='on';interval=window.setInterval(function (){jah(uid);},pause);}">on</a></div><div id="bar1">
<div id="upload_status"></div>
<div id="bar2"><span id='percent'>0%</span></div>
</div><div id="progress_info">
<p><b id='fnames'></b></p>
<b><span id='cursize'></span></b> from <b><span id='totalsize'></span></b><br><br>Upload speed: <b><span id='speed'></span> KB/Sec</b> &nbsp;<br>Time remaining: <b><span id='estimate'></span></b>
<br><br><a href="#" onClick="window.clearInterval(interval);top.location=site_url;">Abort Upload</a>
</div>
<div id='msg'>Initializing upload...</div>
</Center>
</BODY>
</HTML>