var backgroundSrcs = new Array("rand1.jpg","rand2.jpg","rand3.jpg","rand4.jpg","rand5.jpg","rand6.jpg")
function pickimage()
{
var bgimage=backgroundSrcs[(Math.round(Math.random()*(backgroundSrcs.length-1)))]
document.getElementById("displayrandom").style.backgroundImage = "url('" + bgimage + "')";
}