benheck.com Forums

to test for a prime number, the fastest way is to have a list. Of course, that list gets pretty long, so you should only have primes under a million or so.
to find them, write a program to make an array for the prime numbers and a variable to keep track of what number it's on.

then have it go to ...

use the
xxx
xxx
ooo

way of coding, although I'd just make it one string xxxxxxooo

the invincible tic tac toe strategy is easy to learn (just google it). Then just code in every situation

GOOGLE CALENDER!
It's free, easy, and reliable...

but if you must do things your own way, I suggest php and mysql. Pretty much, you'll want your database to have the following tables (feel free to change the names):
-workers
-classes
-shifts
-assignments

columns:
workers should contain workerID ...

css is a very broad topic that changes a lot...
if you want a refresher, I recommend w3schools.com

take the css course (and any others you want) and you'll be fluent in no time.

also, remember that formatting with html tables is "evil" now (because that's not what they're intended for)
always use ...

If you want to construct a database, you should really buy a book as there's no way to fit a guide to php and mysql into a forum post.

also, (I'm not sure if this will work) if you want to stick with the excel idea, php can write text files and you can (most likely, as I don't have access to excel ...

Javascript isn't awkward at all. It's just too lenient in some browsers:
the problem is that each line of javascript is supposed to end with a semicolon (;)

sometimes when you forget to end with ; browsers are able to figure out what you meant and the script seems to work.

This is very annoying ...