Roman Numeral Converter

// Convert to Roman Numerals
// copyright 25th July 2005, by Stephen Chapman http://javascript.about.com
// permission to use this Javascript on your web page is granted
// provided that all of the code (including this copyright notice) is
// used exactly as shown
function roman(n,s) {
var r = '';
var d; 
var rn = new Array('IIII','V','XXXX','L','CCCC','D','MMMM'); 
for (var i=0; i< rn.length; i++) {
var x = rn[i].length+1;
var d = n%x; 
r= rn[i].substr(0,d)+r;
n = (n-d)/x;
} 
if (s) {r=r.replace(/DCCCC/g,'CM');
r=r.replace(/CCCC/g,'CD');
r=r.replace(/LXXXX/g,'XC');
r=r.replace(/XXXX/g,'XL');
r=r.replace(/VIIII/g,'IX');
r=r.replace(/IIII/g,'IV');} 
return r;
}