Page that takes input and changes text via javascript

This is an example page that I grabbed from a site by David Flanagan

This is just cut and pasted from that site. I will be constructing it myself.

Here is a link to the main site that has a ton of examples.

Here is a link to this specific example.

Enter Loan Data: Loan Balance, Cumulative Equity, and Interest Payments
Amount of the loan ($):
Annual interest (%):
Repayment period (years):
Zipcode (to find lenders):
Approximate Payments:
Monthly payment: $
Total payment: $
Total interest: $
Sponsors: Apply for your loan with one of these fine lenders: