Hi all.

I am pretty quick with xhtml and css, getting there on PHP but really don't have much of a clue in javascript.

I guess it is an essential tool to have as it is the only way of server-side prgramming?

But it is used in so many situations for bad things like annoying pop ups and sutff.

hat is it actual uses? Is it worth my time learning it. What is AJAX? Is this more worth learning than JS?

I think you get the drift of what I'm asking...let me know your thoughts.

Mike