// JavaScript Document //
// Image Slideshow Homepage //

var Pic = new Array();
Pic[0] = 'images/slide_img1.jpg'
Pic[1] = 'images/slide_img2.jpg'
Pic[2] = 'images/slide_img3.jpg'


var direction = 0;
var t;
var j = 0;
var p = Pic.length;
var miniPreload = new Array();
for (i = 0; i < p; i++)
{
	miniPreload[i] = new Image();
	miniPreload[i].src = Pic[i];
}

function runSlideShow()
{
	blendImage("miniadvert-div", "miniadvert-image", miniPreload[j].src, 2000);
	
	if(direction == 0)
	{
		direction = 1;
	}
	else
	{
		direction = 0;
	}

	j = j + 1;
	if (j > (p - 1))
	{
		j = 0;
	}
	
	t = setTimeout('runSlideShow()', 5000);
}

function changeOpac(opacity, id)
{
	var object = document.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function blendImage(divid, imageid, imagefile, millisec)
{
	var speed = Math.round(millisec / 100);
	var timer = 0;

	if(direction == 0)
	{
		document.getElementById(divid).style.backgroundImage = "url('" + imagefile + "')";
		for(i = 100; i >= 0; i--)
		{
			setTimeout("changeOpac(" + i + ",'" + imageid + "')", (timer * speed));
			timer++;
		}
	}
	else
	{
		document.getElementById(imageid).src = imagefile;
		for(i = 0; i <= 100; i++)
		{
			setTimeout("changeOpac(" + i + ",'" + imageid + "')", (timer * speed));
			timer++;
		}
	}
}