var RTS = new Object();
var $j = jQuery.noConflict();

$j(document).ready(function() {
    var myarray = new Array(10);
    myarray[0] = "images/1.png";
    myarray[1] = "images/2.png";
    myarray[2] = "images/3.png";
    myarray[3] = "images/4.png";
    myarray[4] = "images/5.png";
    myarray[5] = "images/6.png";
    myarray[6] = "images/7.png";
    myarray[7] = "images/8.png";
    myarray[8] = "images/9.png";
    myarray[9] = "images/10.png";


    var number = Math.ceil(10 * Math.random()) - 1;

    $j("#contentimagebg").css("background-image", "url(" + myarray[number] + ")");

});