JS error after making new skin

[t325]

We're working on a new skin, and after making some changes, we're getting this JS error on the main page:

Error: this.controlobj has no properties
Source File: http://www----.com/clientscript/vbulletin_menu.js
Line: 157

Line 157 is
this.controlobj.state = false;

We've made changes to templates, but haven't touched JS code. What could be wrong? Thanks

[KW802]

When you modified the templates you removed an "id" tag somewhere.