function doSearch(buttonName, event) {
    var key;

    if (window.event)
        key = window.event.keyCode;
    else
        key = event.which;

    if (key == 13) {
        var btn = getObj(buttonName);
        if (btn) {
            event.cancel = true;
            event.returnValue = false;
            btn.click();
            return false;
        }
    }
    else
        return true;

}