This script works only in 4.0+ browsers. I cannot find a function in older JavaScript that can convert CHAR numbers to strings. Fortunately, this does not matter as much as it used to.

Here are a few of the key functions used in the code :

How I get my random number:

// between 0 - 1
var rndNum = Math.random()

// rndNum from 0 - 1000
rndNum = parseInt(rndNum * 1000);

// rndNum from 33 - 127
rndNum = (rndNum % 94) + 33;

How I convert random number to string:

textChar = String.fromCharCode(rndNum);

Get the password generator source code.