Lamtin

/**
 * not so simple check for object equality
 */
var equal = function(a, b) {
    function check(a, b) {
        for (var attr in a) {
            if (a.hasOwnProperty(attr) && b.hasOwnProperty(attr)) {
                if (a[attr] != b[attr]) {
                    switch (a[attr].constructor) {
                        case Object: