//Edit this line to list all of your background images
var backgroundSrcs = new Array("../../images/rotate/randomimage_01.jpg","../../images/rotate/randomimage_03.jpg","../../images/rotate/randomimage_05.jpg","../../images/rotate/randomimage_06.jpg","../../images/rotate/randomimage_07.jpg","../../images/rotate/randomimage_08.jpg","../../images/rotate/randomimage_09.jpg","../../images/rotate/randomimage_11.jpg","../../images/rotate/randomimage_12.jpg","../../images/rotate/randomimage_13.jpg","../../images/rotate/randomimage_14.jpg","../../images/rotate/randomimage_15.jpg","../../images/rotate/randomimage_16.jpg","../../images/rotate/randomimage_17.jpg","../../images/rotate/randomimage_18.jpg","../../images/rotate/randomimage_20.jpg","../../images/rotate/randomimage_23.jpg","../../images/rotate/randomimage_24.jpg","../../images/rotate/randomimage_25.jpg","../../images/rotate/randomimage_26.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("rotating_image").style.backgroundImage = "url('" + bgimage + "')";
}