var direction = 'top';
		var heightSummary;
		var scrollPause;
		
		function scrollBanners()
		{
			var scrollDiv = document.getElementById('scroll');
			var control =	document.getElementById('control');		
			
			if((control.value < heightSummary - 30 && direction == 'top') || control.value == 0)
			{
				control.value++;
				direction = 'top';
				
			}
			else
			{
				control.value--;
				direction = 'bottom';
			}
			scrollDiv.style.marginTop = '-' + control.value + 'px';
			scrollPause = setTimeout("scrollBanners("+ control.value +")", 10);

		}
		
		function doScroll(val)
		{
			var scrollDiv = document.getElementById('scroll');
			scrollDiv.style.marginTop = '-' + val + 'px';
			scrollBanners(val);
		}
		
	//	window.onload = function() { heightSummary = document.getElementById('scroll').offsetHeight; scrollBanners(0);}