var oTimer = null;
var iUpdateInterval = 15 * 1000; //--- in milliseconds
var sImagesUrl = sHomeUrl + 'templates/tmpl_pas/images/collection/';

//--- Start timers ---//
var oldHandler = window.onload;
if(typeof window.onload != 'function') {
	window.onload = startTimer;
}
else {
	window.onload = function() {
		if(oldHandler) oldHandler();
		startTimer();
	}
}

function startTimer()
{
	getImage();
	oTimer = window.setInterval('getImage()', iUpdateInterval);
}

function getImage()
{
	var oImageHolder = document.getElementById('middleRight');
	var iImageIndex = Math.floor(Math.random() * aImages.length);
	oImageHolder.firstChild.src = sImagesUrl + aImages[iImageIndex];
}