var myID = "";
	var myMargin = "";

	function changePreview(id, title, margin, height) {

		myID = id;
		myMargin = margin;

		document.getElementById("myTitle").innerHTML = title;
		document.getElementById("myFrame").src = "http://www.maddenmedia.com/richmedia/loading.html";
		setTimeout("swap()", 1000);

	}

	function swap() {
		document.getElementById("myFrame").style.marginTop = myMargin + "px";
		document.getElementById("myFrame").src = "http://studio.doubleclick.com/externalpreview?h=" + myID;
	}