function CreateLayer(width,height,bgcolor,left,top,alpha,layerid)
    {
        if($(layerid))
        {
            $(layerid).style.display="block";return;
        }
        var div=document.createElement("div");
        div.id=layerid;
        div.style.width=width+"px";
        div.style.height=height+"px";
        div.style.background=bgcolor;
        div.style.position="absolute";
        div.style.top=top+"px";
        div.style.left=left+"px";
        div.style.filter="alpha(opacity="+alpha+")";
        div.style.opacity=alpha/100;
        document.body.appendChild(div);
    }
    function CreateBG()
    {
        var width=document.body.offsetWidth<document.documentElement.clientWidth?document.documentElement.clientWidth:document.body.offsetWidth;
        var height=document.body.offsetHeight<document.documentElement.clientHeight?document.documentElement.clientHeight:document.body.offsetHeight;
        CreateLayer(width,height,"#999999",0,0,30,"Convert");
    }
    function ShowBox(title,url,width,height)
    {
        CreateBG();
        if($("showbox"))
        {
            $("showbox").style.display="block";return;
        }
        var div=document.createElement("div");
        div.id="showbox";
        div.style.width=width+"px";
        div.style.height=height+"px";
        div.style.position="absolute";
        div.style.border="15px solid #444444";
        var S_h=document.body.offsetHeight>document.documentElement.clientHeight?document.documentElement.clientHeight:document.body.offsetHeight; 
        var S_w=document.body.offsetWidth>document.documentElement.clientWidth?document.documentElement.clientWidth:document.body.offsetWidth;
        document.body.style.width=S_w+"px";
        document.body.style.height=S_h+"px";
        div.style.left=(S_w-width)/2+"px";
        div.style.top=(S_h-height)/2+document.documentElement.scrollTop+"px";
        div.innerHTML="<div style=\"background:#444444;height:30px;line-height:30px;padding-left:5px;position:relative;color:#ffffff;\">"+title+"<a href=\"javascript:;\" onclick=\"HideBox()\" style=\"position:absolute;top:0px;right:5px;\"><span style='color:#ffffff'>关闭窗口</span></a></div><iframe src=\""+url+"\" frameborder=\"0\" width=\""+width+"px\" height=\""+(height-30)+"px;\">";
        document.body.appendChild(div);
    }
    function HideBox()
    {
        if($("showbox")){$("showbox").style.display="none";$("showbox").parentNode.removeChild($("showbox"));}
        if($("Convert")){$("Convert").style.display="none";$("Convert").parentNode.removeChild($("Convert"));}
    }
    function ShowFlv(title,id)
    {
        ShowBox(title,'Frame/Video.aspx?pid='+id+'&temp='+Math.random(),400,330);
    }