Who cares about the user having the caps lock on or off If you want it secure, make sure the users have a very strong password and also make it case sensitive There are meny thing that you can do server side to make an app secure, but as everyone here ahs told you, it is not possible to check the caps lock status fromm the server side The only option is as someone else already told you, use javascript and as soon as the users types something do the check with javascript
Alexei Rodriguez