var but_i_up = new Array();
var but_i_down = new Array();
but_i_up[0] = new Image();
but_i_up[0].src = '/images/up_on.gif';
but_i_up[1] = new Image();
but_i_up[1].src = '/images/up_off.gif';
but_i_up[2] = new Image();
but_i_up[2].src = '/images/up_over.gif';

but_i_down[0] = new Image();
but_i_down[0].src = '/images/down_on.gif';
but_i_down[1] = new Image();
but_i_down[1].src = '/images/down_off.gif';
but_i_down[2] = new Image();
but_i_down[2].src = '/images/down_over.gif';


	var cAI;
	var flag_top;
	var flag_bottom;
	var flag_scroll;
	
	function set_status(){
		flag_top = $('#scroll_pane')[0].flag_top;
		flag_bottom = $('#scroll_pane')[0].flag_bottom;
		flag_scroll = $('#scroll_pane')[0].flag_scroll;
		
		if (!flag_scroll){
			$('#but_up').hide();
			$('#but_down').hide();
		}
		if (flag_top){
			$('#but_up').attr('src',but_i_up[1].src);
		}else{
			$('#but_up').attr('src',but_i_up[0].src);
		}
		
		if (flag_bottom){
			$('#but_down').attr('src',but_i_down[1].src);
		}else{
			$('#but_down').attr('src',but_i_down[0].src);
		}
		
		//$('#xxx').html('t:'+flag_top+';b:'+flag_bottom);
	}
	
	function onArrowMouseUp(){
		jQuery('html').unbind('mouseup', onArrowMouseUp);
		clearInterval(cAI);
	};
	function whileArrowButtonDown(){
		if (!flag_bottom){
			$('#scroll_pane')[0].scrollBy(10);
			$('#but_down').attr('src',but_i_down[2].src);
		}
		set_status();
		
		
		
	}
	function whileArrowButtonUp(){
		if (!flag_top){
			$('#scroll_pane')[0].scrollBy(-10);
			$('#but_up').attr('src',but_i_up[2].src);
		}
		set_status();
		
			
	}
	
	function moveUp(){
		jQuery('html').bind('mouseup', onArrowMouseUp);
		if (!flag_top)
			$('#but_up').attr('src',but_i_up[2].src);
		whileArrowButtonUp();
		cAI = setInterval(whileArrowButtonUp, 100);
		
	}
	
	function moveUp_over(){
		if (!flag_top)
			$('#but_up').attr('src',but_i_up[2].src);
	}
	function moveUp_out(){
		if (!flag_top)
			$('#but_up').attr('src',but_i_up[0].src);
	}

	function moveDown(){
		jQuery('html').bind('mouseup', onArrowMouseUp);
		if (!flag_bottom)
			$('#but_down').attr('src',but_i_down[2].src);
		whileArrowButtonDown();
		cAI = setInterval(whileArrowButtonDown, 100);
		
	}
	
	function moveDown_over(){
		if (!flag_bottom)
			$('#but_down').attr('src',but_i_down[2].src);
	}
	function moveDown_out(){
		if (!flag_bottom)
			$('#but_down').attr('src',but_i_down[0].src);
	}
	
$(function(){			
	try{
		$('#scroll_pane').jScrollPane({scrollbarWidth:0});
		$('#scroll_pane')[0].scrollTo('#m_curr');		
		
	}catch(err){
	
		//Handle errors here
	}
});