lucy24 - 8:57 am on Sep 14, 2011 (gmt 0)
Can we assume that you already know html? It's the foundation. Think of it like knowing how to add and subtract even if you work in the far reaches of higher mathematics where you never meet anything so prosaic as a number. Some things you simply have to know.
And get comfortable with Regular Expressions. A healthy respect is OK-- you can seriously injure yourself with a carelessly constructed RegEx-- but you will meet them everywhere you turn. So try to internalize the basics.