function clickButton(e, ButtonId) {

    var bt = document.getElementById(ButtonId.valueOf());

    if (typeof bt == 'object') {
        if (navigator.appName.indexOf("Netscape") > (-1)) {
            if (e.keyCode == 13) {
                if (bt && typeof (bt.click) == 'undefined') {
                    bt.click = function() {
                        var result = true;
                        if (bt.onclick) result = bt.onclick();
                        if (typeof (result) == 'undefined' || result) {
                            eval(unescape(bt.getAttribute('href')));
                        }
                    }
                }
            }
        }
        if (navigator.appName.indexOf("Microsoft Internet Explorer") > (-1)) {
            if (event.keyCode == 13) {
                bt.click();
                return false;
            }
        }
    }
}