It seems that you have init code in textbox that sets val = 0 ...
Check all methods code.

>hi all,
>any idea,
>
>i have 2 text's at my form as
>thisform.text1.value=10
>thisform.text2.value=50
>
>when i return to text1 or text2 a gain i get 0 value at the text, i need to keep 10,50 ..etc if i move left right up down at my form.
>
>thanks.