Combine associative array into html attributes or query string

makeAttributes.js

function makeAttributes(arr, connector, separator) {
    var out = '';

    if (!connector) connector = '=';
    if (!separator) separator = ' ';

    for (var k in arr) {
        out += (out === '') ? '' : separator;
        out += k + connector + arr[k];
    }
    return out;
}