Random CSS colour generator

colorr.js

var hashCode = function(str) {
    var hash = 0;
    var i = 0;
    var chr = 0;
    var len = 0;
    if (str.length === 0) {
        return hash;
    }
    for (i = 0, len = str.length; i < len; i++) {
        chr = str.charCodeAt(i);
        hash = ((hash << 5) - hash) + chr;
        hash |= 0; // Convert to 32bit integer
    }
    return hash;
};

this.randomHslString = function(seed) {
    return "hsl(" + (hashCode(seed) % 360) + ", 50%, 50%)";
};