Zend certified PHP/Magento developer

Newbie trying to use sources

I am trying to have a simple file which changes the directory where the user currently is. If I run the file using . ./Genesis then the source files works fine. But I want to just use ./Genesis and have the cd command work.
I am in my root/Scripts folder: kyle@computer:~/Scripts

How can I modify the code to do this?

I have a file called Genesis which calls a source file

#!/bin/bash
#Genesis
. ./Genesis.sh

The Genesis.sh file has the following code:

jhome() {
cd ~/Scripts/dungeon
}
jhome