Generate any title words with javascript

generate_words.js

// generates random words
function createRandomWord(length) {
    var consonants = 'bcdfghjlmnpqrstv',
        vowels = 'aeiou',
        rand = function(limit) {
            return Math.floor(Math.random()*limit);
        },
        i, word='', length = parseInt(length,10),
        consonants = consonants.split(''),
        vowels = vowels.split('');
    for (i=0;i<length/2;i++) {
        var randConsonant = consonants[rand(consonants.length)],
            randVowel = vowels[rand(vowels.length)];
        word += (i===0) ? randConsonant.toUpperCase() : randConsonant;
        word += i*2<length-1 ? randVowel : '';
    }
    return word;
}

var words = [];
for(x = 0; x < 3; x++){
    words[x] = createRandomWord(5) // generate random word with length of word is 5
}

return  words.join(' '); // join the words and separated by space

// referenced: https://jsfiddle.net/amando96/XjUJM/