HTML and CSS Reference
In-Depth Information
10
Creating Pop-Up Windows,
Adding Scrolling Messages,
and Validating Forms
Objectives
You will have mastered the material in this chapter when you can:
Write a JavaScript user-defined
•
•
Write a JavaScript user-defined function
function to display a scrolling
message
Write a JavaScript user-defined
to calculate monthly loan payments
Define if and if...else statements,
•
•
conditionals, and operands
Write a JavaScript user-defined
function to validate form data
Write a JavaScript user-defined
•
•
function to format output in
a text field
Describe how to open a
function to calculate a total loan
amount based on a sales amount
and down payment
•
pop-up window
