Javascript Random String

Found a nice snippet while poking around, easy code but it's nice to have on hand for a quick copy+paste. Why code it from the bottom when you can take it from the top.

<script type="text/javascript"></li>

function randomString(i)

{

var dt = new Date();

var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";

var string_length = i;

var randomstring = '';

for (var i = 0; i < string_length; i++)

{

var rnum = Math.floor(Math.random() * chars.length);

randomstring += chars.substring(rnum, rnum + 1)

}

return randomstring;

}

</script>