Hi everyone, I've been having problems with integrating this script

<script type="text/javascript">
var wf_pbb_object = [
{bc:"rgb(64, 64, 64)"},
{img:"http://img585.imageshack.us/img585/7326/u3iv.png", mm:true, ms:false, mms:1, mss:10, mmd:1, mso:"v", msd:1, im:"pattern", pr:"both", mma:"both", ofs:{x:0, y:0}, zi:2, sr:false, sb:false, isr:false, isb:false},
{img:"http://img69.imageshack.us/img69/1894/vsv3.png", mm:true, ms:false, mms:3, mss:10, mmd:1, mso:"v", msd:1, im:"pattern", pr:"both", mma:"both", ofs:{x:0, y:0}, zi:3, sr:false, sb:false, isr:false, isb:false},
{img:"http://img41.imageshack.us/img41/9963/shul.png", mm:true, ms:false, mms:2, mss:10, mmd:1, mso:"v", msd:1, im:"pattern", pr:"both", mma:"both", ofs:{x:0, y:0}, zi:4, sr:false, sb:false, isr:false, isb:false}
];
</script>
<script type="text/javascript" src="http://web-features.net/api/wf.pbb.api.js"></script>

into my drupal website, this script should change the hole background of the site with 3 images been used for parallax scrolling, but it doesn't change the main page, instead it just changes the background when i'm using the toolbar:
Result

Pleaase, what could be the problem??
PD: I'm trying to use the script that's giben to me automaticaly from web-features.net/, an parallax scrolling background generator