function showOverlay(filename) {
		var heightBox = getObjRef('mainContent').offsetHeight;
		if (heightBox < 425) {heightBox = 425;}
		//alert (heightBox);
		var so = new SWFObject(filename, "overlayBox", "1000", heightBox, "9", "#FFFFFF");
		so.addParam("scale", "noscale");
		so.addParam("allowScriptAccess", "always");
		so.addParam("wmode", "transparent");
		so.write("overlayBox");
		getObjRef('overlayBox').className='overlay';
}

function resetOverlay() {
	getObjRef('overlayBox').className='invisible';
}