textfield cursor question

hey,

i have a problem with positioning text within a textfield and i'm not sure of the solution.

i have a text field which, when a button is clicked, inserts some text into the textfield. i am currently doing this using the method:

mytextfield.text += "this button was clicked";

obviously, this is only going to add the new text to the end of the text string in the box. what i need it to do is when the button is clicked, add text to the position where the cursor was blinking before i moved the focus onto the button.

i can do this if i can get the position of the blinking cursor when the focus is killed (onKillFocos()). what i really need to know is how i can get the position within the text string...maybe as an attribute of the string.length.

any thoughts or suggestions would be welcomed.

thanks!