iframe url传参

这是我的应用

<script type="text/javascript">
  $.ui.setBackButtonText('返回');
$.ui.setTitle('员工请假登记');
$.ui.toggleNavMenu();
uid=getItem('uid');
dd();
function dd(){ 
var url = "mobiscroll/c.html?uid="+uid;
document.getElementById("oframe").src = url;
} 
</script>
<iframe id='oframe' src="" frameborder="0" height="500px" width="100%" marginheight=0 marginwidth=0 scrolling=no  ></iframe>
c.html 代码 

function post_qingjia(){
var pos,str,parastr; 
var referurl = document.referrer;
var localurl = location.href; 
pos = localurl.indexOf("?") 
parastr = localurl.substring(pos+5); 

var uid=parastr;//登录用户
//alert(uid);
var StartTime=document.getElementById("appDateTime").value;
var EndTime=document.getElementById("appDateTime2").value;


var post_content=document.getElementById("post_qingjia_content").value;//请假原因


$.jsonP({
//url:serverURL+'/ashx/add_qingjia.ashx?uid='+uid+'&post_qingjia_content='+post_qingjia_content,
url:serverURL+'/ashx/add_qingjia.ashx?uid='+uid+'&StartTime='+StartTime+'&EndTime='+EndTime+'&post_qingjia_content='+post_content+'',
success:function(data){
if(data[0].success==true){
alert(data[0].message);
window.parent.frames.location.href = '../index.html';
}
else{
alert('操作失败');
}
}
});
}   

以下为转载：

<img src="http://www.wineimg.com/userfiles/image/2013/01/20/SuperStar_24.jpg" width="131" height="35" alt="AAA" onclick="dd.call(this);" />

<iframe id='oframe' width="100%" height="500"  frameborder="0" scrolling="no" src="http://widget.weibo.com/livestream/listlive.php?language=zh_cn&width=0&height=500&uid=&skin=1&refer=1&appkey=&pic=0&titlebar=1&border=1&publish=1&atalk=1&recomm=0&at=0&atopic=&ptopic=%E9%85%92%E7%BE%8E%E7%BD%91&dpc=1">

function dd(){ 
var id = window.dialogArguments; 
var url = "http://widget.weibo.com/livestream/listlive.php?language=zh_cn&width=0&height=500&uid=&skin=1&refer=1&appkey=&pic=0&titlebar=1&border=1&publish=1&atalk=1&recomm=0&at=0&atopic=" + "&ptopic="+this.alt;
document.getElementById("oframe").src = url;
} 

行了，只要src被赋值，iframe本就会重新加载