var b = document.getElementById('login_submit');
if (b && typeof (b.click) == 'undefined') {
    b.click = function() {
        var result = true;
        if (b.onclick) result = b.onclick();
        if (typeof (result) == 'undefined' || result) {
            eval(b.getAttribute('href'));
        }
    }
}

var b = document.getElementById('ctl00_ContentPlaceHolder1_login_submit');
if (b && typeof (b.click) == 'undefined') {
    b.click = function() {
        var result = true;
        if (b.onclick) result = b.onclick();
        if (typeof (result) == 'undefined' || result) {
            eval(b.getAttribute('href'));
        }
    }
}