XHTML with JavaScript

Exercise 1

Explanation

• Cause

  • An upper-case letter was included for the action of an event hander:

    onClick

  • So, the validator says, there is no attribute "onClick".

• Correction

  • Use lower-case letters only for the event handler's action, like this:

    onclick

• Review

  • Lower-case letters for the XHTML elements: XHTML event handler attributes.