JLT80 on "Location path within external JS file"

Hi there

I have written my own plugin. It seems like something is going wrong with the Javascript. I have queued two JS files and one Jquery.

Within one of the external JS files I use the following script:

$(document).ready(function(){
$("#tag").autocomplete("autocomplete.php", {
selectFirst: true
});
});

It looks likes the plugin can't find autocomplete.php how can fill in the write path to the file?

Thanks for your help!
Jelte