This example uses visibleIf to show and hide form fields as the user inputs data. Tell the form you have an iPhone, use Opera Mini, and have a data plan less than 5 Megabytes with text. As you answer these questions, you'll see how the form changes as you ask each question. Back to User Agent Man visibleIf article
Phone Information

Please enter in the following information about your phone

Phone Type :
Browser Type:
Browser Type :
Browser Type: Palm Pre Webkit Browser
Specify Other Browser Type :
Plan Information

Please enter in the following information about your cellular plan

Plan Features :
Data Cap (Per Month) :
You really should be using Opera Mini to compress you data. You should also consider using SMS for Tweets and Facebook status updates.
Apps Used

Check off the applications that you use on your phone.

Apps with Internet Connectivity : Facebook
Twitter
Google Maps
Apps without Internet Connectivity : Calendar
To Do List
Notes