[Javascript] detect js

[Paul Novitski]

At 09:42 PM 1/27/2005, Iztok Polanic wrote:
>Does anybody have any idea how to prevent a user from logging into 
>applications, if he/she doesn't have js enabled? I tried several ideas but 
>none of them works.


Iztok,

You can use javascript to create the log-in input dialog for the 
user.  Without js enabled, there's no way to log in.  The specific 
techniques that come to mind are:
- insert the log-in input fields into the document;
- use the javascript prompt() function to bring up an input dialog for log-in;
- use the javascript open() function to create a child window containing 
the input fields.

Another less guaranteed method would be to include the log-in input fields 
in the page but suppress them from display with CSS, such as:
         <input style="display: none;" type="text" ... />
Then use javascript to change the display to block.  This technique 
wouldn't work if the user agent didn't process CSS.

Paul