function iFrameSize(oIframe)
{
	var frm = document.getElementById(oIframe); 
	var subWeb = document.frames ? document.frames[oIframe].document : frm.contentDocument; 	
	if(frm != null && subWeb != null) 
	{ 
	   //frm.style.height="0px";//初始化一下,否則會保留大頁面的高度
	   frm.style.height = subWeb.documentElement.scrollHeight+"px"; 
	   frm.style.width = subWeb.documentElement.scrollWidth+"px"; 
	   subWeb.body.style.overflowX="auto";
	   subWeb.body.style.overflowY="auto";	 
	}	
}

function iframeFitHeight(oIframe) 
{
    try 
    { 
        var oWin = oIframe.name ? document.frames[oIframe.name] : oIframe.contentWindow;  
        oIframe.height = oWin.document.body.scrollHeight + "px"; 
    } 
    catch(e){} 
	oIframe.height="500px";
}