Change background image?

**couppi** · 01-06-2007, 04:08 AM

I've been trying to create a script to change the background image of my site and store it in a cookie. This is what I have so far:

Code:

<script language="javascript">
<!--
var backImage = new Array();

back[0] = "aquablack.jpg";
back[1] = "aquablue.jpg";
back[2] = "aquared.jpg";

function changebgimage(backnum){
if (document.body){
document.body.background = back[backnum];
}
}
function cookie(number){
if (document.body){
document.cookie = "background="+number+";expires=Fri, 17 Dec 2010 12:00:00 GMT";
}
}

function bgimage(somenumber){
if (document.body){
changebgimage(somenumber);
cookie(somenumber);
}
}

function ReadCookie(cookieName) {
 var theCookie=""+document.cookie;
 var ind=theCookie.indexOf(cookieName);
 if (ind==-1 || cookieName=="") return ""; 
 var ind1=theCookie.indexOf(';',ind);
 if (ind1==-1) ind1=theCookie.length; 
 return unescape(theCookie.substring(ind+cookieName.length+1,ind1));
}

var bg = ReadCookie(background);

function initialbackground() {
if (document.body){
changebgimage(bg);
}
}
//-->
</script>

Right after the <body> tag, I have this:

Code:

<script language="javascript">
initialbackground();
</script>

I copied the ReadCookie function, so I have no idea how it works. The bgimage function changes the background and sets the cookie, but the initialbackground function doesn't seem to work. What's wrong with the script?

**djr33** · 01-07-2007, 04:07 AM

What does it do/not do?
A link to your page would help.

**couppi** · 01-07-2007, 04:25 AM

Nevermind, I figured it out.

I needed to put quotes.

var bg = ReadCookie("background");

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