Thought it would be a neat exercise to recreate the mIRC $gettok() function in javascript as I've seen it popup in several other languages. The only caveat I'm aware of is when passing multiple N parameters (eg: '2-6' or '2-'); it must be in string format. Otherwise javascript will interpret N and pass undesired results (eg: '-4'). If only passing one N parameter, integer use is recommended.
var s = 'this is sparta yo rawr meow woof moo', r;
r = gettok(s, '2-6', 32); // result: is sparta yo rawr meow
r = gettok(s, 2, 32); // result: is
r = gettok(s, '6-', 32); // result: meow woof moo
function gettok(s, n, c) {
var c = String.fromCharCode(c), sa = s.split(c);
if (!/-/.test(n)) {
n = (n - 1);
return sa[n] || NaN;
} else {
n = n.split('-'), o = [];
var x = n[1] || s.length;
for (var i = (n[0] - 1); i < x; i++) o.push(sa[i]);
return (o.length > 0) ? o.join(c) : NaN;
}
}