// JavaScript Document

var lastSlide=1;
var numSlides=0;
var isSlideshow=false;
var ti=-1;

$(document).ready
(
 	function()
	{
		startSlideshow();
	}
);

function clickSlide(n)
{
	if(lastSlide > -1)
	{
		closeSlide(lastSlide);	
	}
	//
	lastSlide = n;
	openSlide(lastSlide);
}

function openSlide(n)
{
	$('#feature'+n).fadeIn(750);
	//slide = MM_findObj('feature'+n);
	//slide.style.display = 'block';
	bt = MM_findObj('button'+n);
	if(bt!=null)
	{
		bt.style.backgroundImage = 'url(images/homepage-item-on.png)';
	}
}

function closeSlide(n)
{
	$('#feature'+n).fadeOut(750);
	//slide = MM_findObj('feature'+n);
	//slide.style.display = 'none';
	bt = MM_findObj('button'+n);
	if(bt!=null)
	{
		bt.style.backgroundImage = 'url(images/homepage-item-off.png)';
	}
}

function startSlideshow()
{
	//alert('start');
	isSlideshow=true;
	setTimeout(nextSlide,4750);
}

function nextSlide()
{
	var pos = lastSlide+1;
	if(pos > numSlides)
	{
		pos = 1;
	}
	//alert('next: '+pos);
	clickSlide(pos);
	//
	if(isSlideshow)
	{
		setTimeout(nextSlide,4750);
	}
}

function endSlideshow()
{
	//alert('end');
	isSlideshow=false;
}