function verScroll(dir, spd, loop) { 
	scrolltimer = null; 
	  
	var page= document.getElementById('scrollDiv').style; 

	direction = dir; 
	speed = parseInt(spd); 
	var y_pos = parseInt(page.top); 
	
	
	if(loop == true){ 
		if(direction == "up" && y_pos < 100){ 
			page.top = (y_pos + (speed)); 
		}
		else{ 
			if(direction == "top"){ 
				page.top = 100; 
			} 
		} 
	} 
	scrolltimer = setTimeout("verScroll(direction,speed, true)", 25); 
	
	  
	function stopScroll() { 
		loop = false; 
		clearTimeout(scrolltimer); 
	}
}