// JavaScript Document Random image generator

function getRandomNum(lbound, ubound) {
                        return (Math.round(Math.random() * (ubound - lbound)) + lbound);
                    }
                    var imgSet = getRandomNum(1,4);
                    //var imgSet = 1 / Math.random();
                    //alert(imgSet);
                    imgSet = String.fromCharCode(96 + imgSet);
                    //alert(imgSet);
                    document.getElementById("randompic").style.background = "url(lib/images/BannerPics/pic_" + imgSet + ".jpg)";