function start() {setInterval('scroll()',1);}
	function scroll() {
		var startPos = 660;
		if(navigator.appName == 'Microsoft Internet Explorer') var position = document.body.scrollTop; 
		else var position = window.pageYOffset;
		if(position > startPos) document.getElementById('frame').style.top = (position - startPos) + 'px';
		else document.getElementById('frame').style.top = '0px';
	}