What is JavaScript
JavaScript is the world's most popular programming language on the Web. JavaScript is the programming language of the Web.
Showing and Hiding Text
JavaScript can show and hide HTMl elements.
Creating an Alert Box
When you rollover this container you will recieve a popup box.
Retrieving User Input
Change the text of the text field, then click the button below
Name:Note that the defult value is not affected when you change the value of the text field.
Changing opacity
Try rolling over the image
