var images = [
				  ["http://www.cristiana.com.au/images/prodImg1.png"],
				  ["http://www.cristiana.com.au/images/prodImg2.png"],
				  ["http://www.cristiana.com.au/images/prodImg3.png"],
				  ["http://www.cristiana.com.au/images/prodImg4.png"],
				  ["http://www.cristiana.com.au/images/prodImg5.png"],
				  ["http://www.cristiana.com.au/images/prodImg6.png"],
				  ["http://www.cristiana.com.au/images/prodImg7.png"]
			  	]

var randomnumber = Math.floor(Math.random()*(images.length)) 

    var banner_div = $("bannerRotate");
    var image_src = images[randomnumber][0];
    var image_alt = images[randomnumber][1];
    banner_div.innerHTML = '<img id="bannerrotator" src="' + image_src + '" alt="' + image_alt + '" />';