function makeScrollbar(content,scrollbar,handle,horizontal,ignoreMouse){
		var steps = (horizontal?(content.getScrollSize().x - content.getSize().x):(content.getScrollSize().y - content.getSize().y))
		var slider = new Slider(scrollbar, handle, {	
			steps: steps,
			mode: (horizontal?'horizontal':'vertical'),
			onChange: function(step){
				// Scrolls the content element in x or y direction.
				var x = (horizontal?step:0);
				var y = (horizontal?0:step);
				content.scrollTo(x,y);
			}
		}).set(0);
		if( !(ignoreMouse) ){
			// Scroll the content element when the mousewheel is used within the 
			// content or the scrollbar element.
			$$(content, scrollbar).addEvent('mousewheel', function(e){	
				e = new Event(e).stop();
				var step = slider.step - e.wheel * 30;	
				slider.set(step);					
			});
		}
		// Stops the handle dragging process when the mouse leaves the document body.
		$(document.body).addEvent('mouseleave',function(){slider.drag.stop()});
	}
				
	window.addEvent('domready', function(){				
		steps = ($('main_text').getScrollSize().y - $('main_text').getSize().y);
		if (steps > 1)
		{
			makeScrollbar( $('main_text'), $('scrollbar1'), $('handle1') );
		}
		else
		{
			var slider = new Slider($('scrollbar1'), $('handle1'), {	
				steps: 2,
				mode: 'vertical'
			}).set(0);
			slider.set(1);
		}
	});