javascript: any way to SET position of cursor in a textbox??? [Resolved]

i am trying to SET the position of the cursor within an asp:textbox using javascipt.
This would probably happen on the keydown event.

e.g.

a textbox contains the word "example"
focus is on the textbox and the cursor is before "x"
user then presses a key, and i would like the cursor to move to between "m" and "p".

This isn't my actual intention, but it is similar to what i would like to happen.

is this possible in javascript??