var thumbs = new Array(
	"project_images/aim01thumb.jpg",
	"project_images/aim02thumb.jpg",
	"project_images/aim03thumb.jpg",
	"project_images/countree01thumb.jpg",
	"project_images/countree02thumb.jpg",
	"project_images/leg01thumb.jpg",
	"project_images/leg02thumb.jpg",
	"project_images/leg03thumb.jpg",
	"project_images/leg04thumb.jpg",
	"project_images/levin01thumb.jpg",
	"project_images/levin02thumb.jpg",
	"project_images/moffett01thumb.jpg",
	"project_images/moffett02thumb.jpg",
	"project_images/moffett03thumb.jpg",
	"project_images/ntr01thumb.jpg",
	"project_images/ogates01thumb.jpg",
	"project_images/ogates02thumb.jpg",
	"project_images/ogates03thumb.jpg",
	"project_images/pav01thumb.jpg",
	"project_images/pav02thumb.jpg",
	"project_images/pav03thumb.jpg",
	"project_images/pm01thumb.jpg",
	"project_images/pm02thumb.jpg",
	"project_images/pm03thumb.jpg",
	"project_images/swbt01thumb.jpg",
	"project_images/swbt02thumb.jpg",
	"project_images/swbt03thumb.jpg",
	"project_images/tsb01thumb.jpg",
	"project_images/wiltel01thumb.jpg",
	"project_images/wiltel02thumb.jpg"
	);


function randomNum(n) {
	num = Math.floor(Math.random() * (n+1));
	return num;
}

function windowObject()	{

	this.ht = function(){
		if (document.body.clientHeight) return document.body.clientHeight; //IE
		if (window.innerHeight) return window.innerHeight;} //Moz
	
		
	this.wd = function(){
		if (document.body.clientWidth) return document.body.clientWidth; //IE
		if (window.innerWidth) return window.innerWidth;} //Moz
	
}

var aniframes = new Array();
var num_loaded_images = 0;

for (var i=0; i < thumbs.length; i++) {
	aniframes[i] = new Image();
	aniframes[i].onload = countImages;
	aniframes[i].src = thumbs[i];
}

function countImages() {
	if (++num_loaded_images == aniframes.length) animate();
}

var frame = 0;
var timeout_id = null;

function animate() {
	theWindow = new windowObject();
	var w = theWindow.wd() - 373;
	var h = theWindow.ht() - 72;
	
	var x = randomNum(w) + 40;
	var y = randomNum(h) + 142;
	
	theImg = document.getElementById('randomthumb');
	theImg.src = aniframes[frame].src;
	theImg.style.top = y + "px";
	theImg.style.left = x + "px";
	
	frame = (frame + 1)%thumbs.length;
	timeout_id = setTimeout("animate()", 1000);
}