Dialog help :)

// need help asap got a dialog script but not sure where to add what i want b coz im making a tardis i have added the summon around infront and demat buttons but im not sure where to add the comands to when click that option do this for that button

integer    gActionsPerPage = 9;
list       gListActions = ["Summon","Around", "Demat"];


integer    gTotalActions;
integer    gPage;
integer    gMaxPage;
integer    gChan;
key        gUser;

BuildDialogPage(key user)
{
    // Build a dialog menu for current page for given user
    integer start = gActionsPerPage * gPage;       // starting offset
    list buttons = [ "<<", " ", ">>" ];
    if (gActionsPerPage == 10)           buttons = [ "<<", ">>" ];
    else if (gActionsPerPage > 10)       buttons = [];          // No room for paging buttons

    // 'start + gActionsPerPage -1' might point beyond the end of the list -
    // - but LSL stops at the list end, without throwing a wobbly
    buttons += llList2List(gListActions, start, start + gActionsPerPage - 1);
    llDialog(user, "\nPage " + (string) (gPage+1) + " of " + (string) (gMaxPage + 1) + "\n\nChoose an action", buttons, gChan);
    llSetTimerEvent(60);

default
{
    state_entry()
    {
        gTotalActions = (gListActions != [] );        // get length of action list

        // Validate 'ActionsPerPage' value
        if (gActionsPerPage < 1 || gActionsPerPage > 12)
        {
            llOwnerSay("Invalid 'gActionsPerPage' - must be 1 to 12");
            return;
        }

        // Compute number of menu pages that will be available
        gMaxPage = (gTotalActions - 1) / gActionsPerPage;
        if (gActionsPerPage > 10)
        {
            gMaxPage = 0;
            if (gTotalActions > gActionsPerPage)
            {
                llOwnerSay("Too many actions in total for this ActionsPerPage setting");
                return;
            }
        }

        // Compute a negative communications channel based on prim UUID
        gChan = 0x80000000 | (integer) ( "0x" + (string) llGetKey() );
        state ready;
    }
}
state ready
{
    touch_end(integer total_number)
    {
        gUser = llDetectedKey(0);
        state busy;
        // Changing state sets the application to a busy condition while one user is selecting from the dialogs
        // In the event of multiple 'simultaneous' touches, only one user will get a dialog
    }
}
state busy
{
    state_entry()
    {
        llListen(gChan, "", gUser, "");                // This listener will be used throughout this state
        gPage = 0;
        BuildDialogPage(gUser);                        // Show  Page 0 dialog to current user
    }
    listen (integer chan, string name, key id, string msg)
    {
        if (msg == "<<" || msg == ">>")                   // Page change ...
        {
            if (msg == "<<")        --gPage;              // Page back
            if (msg == ">>")        ++gPage;              // Page forward
            if (gPage < 0)          gPage = gMaxPage;     // cycle around pages
            if (gPage > gMaxPage)   gPage = 0;
            BuildDialogPage(id);
            return;
        }
        if (msg != " ")                                  // no action on blank menu button
        {
            // User has selected an action from the menu
            llRegionSayTo(id, 0, "You chose action <" + msg + ">");
        }
        state ready;         // changing state will release ANY and ALL open listeners
    }
    timer()
    {
        llRegionSayTo(gUser, 0, "Too slow, menu cancelled");
        state ready;
    }
    state_exit()
    {
        llSetTimerEvent(0);          // would be dangerous to leave a dormant timer
    }
}