var h = document.getElementById("frameContent").clientHeight;
var frameH = (h+20);
if (document.getElementById("frameBgTop")) {
	if (frameH > 539) { document.getElementById("frameBgBottom").style.height=(frameH-539)+"px"; } else { document.getElementById("frameBgBottom").style.display = "none"; }
	document.getElementById("frameBgTop").style.height= frameH + "px";
} else {
	if(document.getElementById("frameBg"))
		document.getElementById("frameBg").style.height= frameH + "px";
}