Mention GetSimpleForm in README
Add callback link
Add callback script
Add simple event listener
Show/hide popup
Refactor popup create/delete code
Add close button to popup
Add form inputs
Fix for MSIE
Use box-sizing
Fix for Firefox
Close button fix for Firefox
Make phone required
Get user input and check phone
Send JSONP to simpleform
Check email
Mention callback in README
Change page sizes
Add charset to development site
Remove vmenu background