/*
    2011 Aug 03:    huudungle
    Xử lý phím Enter
*/
function catchEnterKey(buttonID) {
    var e=null;
    if (window.event) e = window.event;
    var key = 0;
    if (e.keyCode)
        key = e.keyCode;
    else if (e.which)
        key = e.which;
    if (key == 13) {
        var btn = document.getElementById(buttonID);
        btn.click();
        if (e.cancelBubble) e.cancelBubble = true;
        if (e.stopPropagation) e.stopPropagation();
        if (e.returnValue) e.returnValue = false;
        return false;
    }
    return true;
}