load a javascript ONLY on the homepage

[Iamcaptain]

Hello to all. First post here and in need of help.

I want to load the twitter widget javascript only on the homepage because it sends errors on all other webpages (works fine on the homepage where i have the widget, so the error must be because it can't use the widget)

i tried adding this

if (document.getElementById("twitter_div")) {


}

i want to make the if statement say "if twitter div exists on page, run script, else, don't" in the header.tpl

how can i do this using smarty code? please help me guys.

[Iamcaptain]

Message: 'document.getElementById(...)' is null or not an object
Line: 12
Char: 3
Code: 0
URI: http://localhost/modules/twitter/blogger.js


this is the error that you get when you look at the report in internet explorer 8. It happens on every page, except for the homepage (where the widget is)