Numbers between to numbers

I have 2 input boxes. I need to get all numbers between to the 2 numbers. for example if the first textbox is 1 and the second is 5
I need the variable (num2) to update by one every 3 seconds. So num2 = 1
In 3 seconds num2 = 2
In 3 seconds num2 = 3
and so on............. until the number reaches the the number in the second input box.(in this case it whould be 5).

Thank you!!

This sounds like homework....

Post what work you have done already. We can look at it and assist you. This is really easy, so I am thinking you haven't put to much effort into it. Prove me wrong.

Thats a problem because the site i am phraseing wont let u view it unless you are logged in and are a member.