Hello Experts!

In a form I have 4 text. In text1 , text2 and text3 I am entering Date. And in 4th text a period.
I want to check the period.

In valid event of Text4 I coded

If ((thisform.text1.value)+(thisform.text4.value))>(thisform.text3.value)

=Message("You have Entered a Higher Period",1)
return 0
endif

i.e, if text1.value=("12/12/2005"),
text4.value=24,
text3.value=("12/11/2006")
I have entered a higher period value at text4.

My code is not giving me the desired result.

Please help me.

Chandan