function acceptcharonly(e) {
    var key;
    var keychar;

    if (window.event) // For IE
        key = window.event.keyCode;
    else if (e)
        key = e.which;
    else
        return true;
    keychar = String.fromCharCode(key);

    if ((("<>").indexOf(keychar) > -1))
        return false;

    return true;
}