//Useful script found on http://www.webmasterworld.com/javascript/3004874.htm
var num;
var myPics=new Array('/Images/Random/1.JPG','/Images/Random/2.JPG','/Images/Random/3.JPG', '/Images/Random/4.JPG', '/Images/Random/5.JPG', '/Images/Random/6.JPG');
var imgCt=myPics.length;

function testNumber() {
randomNum=Math.floor(Math.random()*imgCt);
if(randomNum==num) {
testNumber();
}
else {
num=randomNum;
document.getElementById('myImage').src=myPics[randomNum];
setCookie();
}
}

function setCookie() {
exp=new Date();
plusMonth=exp.getTime()+(31*24*60*60*1000);
exp.setTime(plusMonth);
document.cookie='Number='+num+';expires='+exp.toGMTString();
}

function readCookie() {
if(document.cookie) {
num=document.cookie.split('Number=')[1];
testNumber();
}
else {
testNumber();
}
}
window.onload=readCookie;