Javascript/ASP.net textbox

[kaban]

HI Guys

Here's the deal.
I'm trying to write a small JavaScript or Asp.net program which would be doing this:

if W is pressed on keyboard then write '1' in textbox
if E is pressed on keyboard then write '2' in textbox
if R is pressed on keyboard then write '3' in textbox
etc.

any ideas?


Thanks Much in advance