roman numeral converter + javascript
function convertToRoman(num) {
var roman = '';
var decimal = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1];
var romanNum = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I'];
for (var i = 0; i < decimal.length; i++) {
while (decimal[i] <= num) {
roman += romanNum[i];
num -= decimal[i];
}
}
return roman;
}