//Edit this line to list all of your background images
var backgroundSrcs = new Array("/images/phototile1.jpg","/images/phototile2.jpg","/images/phototile3.jpg","/images/phototile4.jpg","/images/phototile5.jpg","/images/phototile6.jpg")

function pickimage() {
	//This line picks an image at random from the list you entered above
	var bgimage=backgroundSrcs[(Math.round(Math.random()*(backgroundSrcs.length-1)))]
	//This line applies the background image to your masthead
	document.getElementById("photocol").style.backgroundImage = "url('" + bgimage + "')";
}