function MM_openBrWindow(theURL, winName, features) { //v2.0
    window.open(theURL, winName, features);
}

var EmailAddressUtil = new function () {
    this.IsValidAddress = function (emailAddr) {
        var filter = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
        return filter.test(emailAddr);
    };
};