var $scrollTimer = null;
	var $scrollDelay = 0;
	var $scrollSpeed = 100;


	function scrollStart(which,direction){
		
		if($scrollTimer == null){
		$scrollTimer = setInterval("scrollDo('"+which+"','"+direction+"');",$scrollDelay);
		}

	}

	function scrollDo(which,direction){
		
		
		var target = document.getElementById(which);

		if(direction == 'R'){

			/*
			//var tmpLeft = target.scrollLeft;
			//target.scrollLeft += $scrollSpeed;
			*/
			var tmpLeft = target.scrollLeft;
			target.scrollLeft += $scrollSpeed;
			if (target.scrollLeft == tmpLeft) {
				target.scrollLeft = 0;
			}

		}else if(direction == 'L'){
			target.scrollLeft -= $scrollSpeed;

		}else if(direction == 'U'){
			target.scrollTop -= $scrollSpeed;
		}else if(direction == 'D'){
			target.scrollTop += $scrollSpeed;
		}

	}
	
	function scrollEnd(){

		clearInterval($scrollTimer);
		$scrollTimer = null;
		$isMouseOut = false;
		
		
		
	}