function updateHeight() {
	if(document.getElementById("introheight") && document.getElementById("pu_contentblock")) {
		var h = Math.max(document.getElementById("introheight").offsetHeight);
		if (document.all || window.navigator.userAgent.indexOf('Safari') != -1)
			document.getElementById("pu_contentblock").style.height = 390-h+"px"
		else
			document.getElementById("pu_contentblock").style.height = 390-h+"px";
	}
}