Populating a dynamic text box

hello people, i seem to be having a problem with populating a text box, for example: i have 4 buttons with for differant email address in, when i click on one of those buttons i want a textbox on the next frame automatically to display the email addy in the to box of my email form. this is my code:

on (release) {
 _root.form.toemail.text = "[EMAIL="[email protected]"][email protected][/EMAIL]";

however instead of the box contining the email it contains this - level0.form.toemail - can anyone see were im going wrong? thank you in advance.