Let's stop here a moment, and cover one other "small" item. One thing that you need to keep in mind is that unlike HTML, javascript is *very* sensitive to proper use.

In HTML, if you leave off a closing tag, or misformat a table, the browser will attempt to display the stuff anyway - not so with javascript!

For instance, javascript calls and functions are case-sensitive!! For instance, "$blah" and "$Blah" are two different variables!

Another example of a common error is the misuse of semi-colons (;). Putting one where it doesn't belong, or NOT putting one in where it's needed can cause a script to fail. Javascript errors can, at worst, crash a browser - so it's best to be careful!

One more thing to talk about before we get to the example scripts!