var KF_DOMAINNAME = "qq.com";
var KF_BIZAPP = "b";

window.onload = function()
{
	resizeIframe();
	setTimeout("resizeIframe()",200);
}

function getHeight()
{
    var height = Math.max( 
					Math.max(document.body.scrollHeight, document.documentElement.scrollHeight), 
					Math.max(document.body.offsetHeight, document.documentElement.offsetHeight) 
			     )
	return height;
}

function resizeIframe()
{
	var frm = parent.document.getElementById("mainIframe");
	if(frm)
	{
		frm.style.height = getHeight() + "px";
	}
}