ip address subnet calculator in JavaScript:

	dot quad	binary quad	integer	count
address:	`unset`	`unset`	`unset`
netmask:	`unset`	`unset`	`unset`	`unset`
network:	`unset`	`unset`	`unset`
broadcast:	`unset`	`unset`	`unset`	`unset`

Notes:

Netmask is the number of bits filled from the high bit to low, then padded with zeros to be 32.
Network is a logical AND between the address and netmask: 1 & 1 = 1, 1 & 0 = 0, 0 & 1 = 0, 0 & 0 = 0
Broadcast is a logical OR between the address and the NOT netmask (bits flipped).
View the source for the JavaScript code: http://www-personal.umich.edu/~parsec/information/code/ip_calc.js.txt