js: url hash variables

url-hash-variables.js

function getHashVariable(variable) {
    var query = window.location.hash.substring(1);
    var vars = query.split('&');
    for (var i = 0; i < vars.length; i++) {
        var pair = vars[i].split('=');
        if (decodeURIComponent(pair[0]) == variable) {
            return decodeURIComponent(pair[1]);
        }
    }

    return null;
}