// JavaScript Document
//=======================================================================================================
//-------------------------------------------------------------------------------------------------------
//	Custom Javascript functions
//-------------------------------------------------------------------------------------------------------
//=======================================================================================================
//

//-------------------
// Scrolling function
//-------------------

var scrolling 		= false;
var right_interval 	= '';
var left_interval 	= '';
var div_name		= 'scrollbox';
var int_timer		= 100;

/*public*/
function startScrollDown()
{
	scrolling 		= true;
	right_interval 	= setInterval("scrollDown()" , int_timer);
}

/*public*/
function startScrollUp()
{
	scrolling 		= true;
	left_interval 	= setInterval("scrollUp()" , int_timer);
}

/*public*/
function stopScrolling()
{
	scrolling		= false;
	clearInterval(left_interval);
	clearInterval(right_interval);
}

/*private*/
function scrollUp()
{
	if( scrolling )
	{
		var div 		= document.getElementById(div_name);
		div.scrollLeft 	-= 20;
	}
	else
	{
		clearInterval(right_interval);
	}

}

/*private*/
function scrollDown()
{
	if( scrolling )
	{
		var div 		= document.getElementById(div_name);
		div.scrollLeft 	+= 20;
	}
	else
	{
		clearInterval(left_interval);
	}

}