var rndimg;

function swap() {
var numimages=6;
rndimg = new Array("irotate/image1.jpg", "irotate/image2.jpg", "irotate/image3.jpg", "irotate/image4.jpg", "irotate/image5.jpg", "irotate/image6.jpg"); 
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("cgbkpic").style.backgroundImage = "url("+ randomimage +")"; 
}


function setarray(js_array) {
rndimg = js_array;
alert(rndimg);
}

function swap2(randomimage) {
document.getElementById("cgbkpic").style.backgroundImage = "url("+ randomimage +")"; 
}