CSS>

ALTERNATIVE ROWS

I almost fell on the floor when I saw this code... so simple and effective.

$k = 1 - $k


Typically I used to do things like:

k = (k == 0 ? 1 : 0);  or...
if(k == 0) { k = 1; }else{k = 0;}


Shame on me.  Here's how the new code works out:

k starts off as 0

when coming into your loop k then equals 1 - 0 (0 is its current value)

k now equals 1

on the next loop... k = 1 - 1 (1 is k's current value) 

now k equals 0... and so on and so forth.