A URL Querystring gets a value used to display information on a page.
An example would be.
We look at the Query of Type above to get its Value. Once we get its value, we can determine what to do with it.
Example.
Now, if you have a lot of Queries in your code, you can create a Variable that will allow for more effortless coding.
The Variable of getType can now be used in place of the request.querystring("Type").
Example from the above.