var Pic = new Array();
Pic[0] = 'images/banner1.gif';
Pic[1] = 'images/banner2.gif';
Pic[2] = 'images/banner3.gif';
Pic[3] = 'images/banner4.gif';

var Alt = new Array();
Alt[0] = '';
Alt[1] = '';
Alt[3] = '';
Alt[4] = '';

var Url = new Array();
Url[0] = 'http://www.ucpbham.com/';
Url[1] = 'http://www.ucpbham.com/';

var millisec = 3000;
var enableLinks = 0;
var enableAlts = 1;

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

var t;
var arrIndex = 1;
var changeImg = true;

//change the opacity for different browsers
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 switchImage()
{	
	var speed = Math.round(millisec / 300);
    var timer = 0;
	if(changeImg)
	{
		document.getElementById('SlideShowImg').src = Pic[arrIndex];
		if(enableAlts) document.getElementById('SlideShowImg').alt = Alt[arrIndex];		
		if(enableLinks) document.getElementById('SlideShowLink').href = Url[arrIndex];		
		if(enableAlts && enableLinks) document.getElementById('SlideShowLink').title = Alt[arrIndex];		
		changeImg = false;
		for(i = 0; i <= 100; i++)
		{
			setTimeout("changeOpac(" + i + ",'" + "SlideShowImg" + "')",(timer * speed));
			timer++;
		}
	}
	else
	{
		document.getElementById('feature').style.backgroundImage = "url(" + Pic[arrIndex] + ")";
		if(enableAlts) document.getElementById('SlideShowImg').alt = Alt[arrIndex];		
		if(enableLinks) document.getElementById('SlideShowLink').href = Url[arrIndex];		
		if(enableAlts && enableLinks) document.getElementById('SlideShowLink').title = Alt[arrIndex];		
		changeImg = true;
		for(i = 100; i >= 0; i--) 
		{
			setTimeout("changeOpac(" + i + ",'" + "SlideShowImg" + "')",(timer * speed));
			timer++;
		}
	}
	arrIndex++;
	if(arrIndex == Pic.length) arrIndex = 0;
	t = setTimeout("switchImage()", (millisec*2));
}

function runSlideShow()
{
	
	//Initialize slideshow with both images matching
	document.getElementById('feature').style.backgroundImage = "url(" + Pic[0] + ")";
	document.getElementById('SlideShowImg').src = Pic[0];
	if(enableAlts) document.getElementById('SlideShowImg').alt = Alt[0];		
	if(enableLinks)document.getElementById('SlideShowLink').href = Url[0];		
	if(enableAlts && enableLinks) document.getElementById('SlideShowLink').title = Alt[0];
	
	if(Pic.length > 1) setTimeout("switchImage()", millisec);
}