[Users] Geoext query form

[Javier Cornejo]

	Hi, I´m new in this tool, so I want to use Query Form. but when I put in my code, i get this message.
TypeError: b is null
http://extjs.cachefly.net/ext-3.2.1/ext-all.js
Line 7

Any one could help me.

Thannks a lot.

Javier