[webfantasy]

Sub program that can take data called parameters (optional), execute a computation (task) and return a value.
Function is a reusable piece of code. By reusable we mean that you need to make only once but you can use it many times. for example, a function of addition on a calculator. the keywords for making a function are function, return, end function. as functions, sub routines and classes are the part of VB.net, thats why we will use a separat block for it, instead of using asp block. the tag for this block is "< SCRIPT > "