//Get the random image from the home page from InternalRequest.js
GetHomePageRandomImage()

//Set the timeout in milliseconds
var slideShowSpeed = 6000;
var timeout = setTimeout('SlideShow()',slideShowSpeed);

function SlideShow() {
	opacity('randomImage',99,0,500);	
	//changeOpac(0,'home-image');
	timeout = setTimeout('GetImage()',600);
}

function GetImage() {
	changeOpac(0,'randomImage');
	changeOpac(0,'home-image');
	GetHomePageRandomImage();
	setTimeout('showImage()',500);
}

function showImage() {
	opacity('home-image',0,99,500);
	opacity('randomImage',0,99,1100);
	timeout = setTimeout('SlideShow()',slideShowSpeed);
}

function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
		{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

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