$(function()
{
	// maximum number of roatating images
	maxRotatingImages = 3;

	/******************************
	* DO NOT edit below this line *
	*******************************/

	// show ad banner randomly
	if ( $("*").index( $("#featureimg")[0] ) > -1 )
	{
		$("#featureimg a img").attr({ src: "cmsimages/main-image-" + getRandNum(maxRotatingImages) + ".jpg" });
	}
});

// get a random number function
function getRandNum(max) {
	return Math.floor( Math.random() * max ) + 1;
}