Hi Everyone! I have some javascript which runs a timer that animates something on the website.

It all works perfectly but I want to get an image to change when the animation is run, It uses jquery:

if(options.auto && dir=="next" && !clicked)
{
    timeout = setTimeout(function(){
if (document.images['bullet1'].src == "img/bulletwhite.png")
{
        document.images['bullet1'].src = "img/bullet.png";
        document.images['bullet2'].src = "img/bulletwhite.png";
}
animate("next",false);
                    },diff*options.speed+options.pause);
                }

options.auto means that its automatically cycling, dir is the direction of the motion and clicked is whether or not the user clicked it.

Is there something wrong with my syntax here? I ran firebug with it, and it doesn't throw any errors, it simply won't work. Any advice would help!

I should mention that the src of bullet1 starts at bulletwhite.png and then I was hoping for it to change to bullet.png and have bullet2 change to bulletwhite.png.