function getCode(event) {
    var code = null;
    if (event.which == undefined) {
        code = event.keyCode;
    }
    else if (event.which != 0 && event.charCode != 0) {
        code = event.which;
    }

    if (code >= 97 && code <= 122 && event.shiftKey == true) { //caps lock is on
        code = code - 97 + 65;
    }
    else if (code <= 90 && code >= 65 && event.shiftKey == false) {
        code = code - 65 + 97;
    }

    if (code != null) {
        return String.fromCharCode(code);
    }
    else {
        return null;
    }
}

function bindCode(event, code, id) {
    if (getCode(event) == code) {
        document.getElementById(id).click();
    }
}

function bindLink(event, code, id) {
    if (getCode(event) == code) {
        document.getElementById(id).onclick();
    }
}