integer price = 10;
integer price1 = 20;
integer price2 = 40;
integer price3 = 50;

integer counter;


default
{
    state_entry()
    {
        llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);
        llRequestPermissions(llGetOwner(), PERMISSION_DEBIT);
    }
    run_time_permissions(integer perm)
    {
        if(perm & PERMISSION_DEBIT)
            state cash;
    }
}

state cash
{
    state_entry()
    {
        llSetText("Parking Meter
10L$ = 30 Min
20L$ = 1 Hour
40L$ = 3 Hour
50L$ = 5 Hour
                   ", <1.0,1.0,1.0>, 1.4);
        llSetPayPrice(PAY_HIDE, [price ,price1, price2, price3]);
    }
    money(key id, integer amount)
    {

        if(amount == price){
            llInstantMessage(id, "Paid: "+ (string)price);
            llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);
            counter = 0;
            llSetTimerEvent(5);
        }
      else if(amount == price1){
            llInstantMessage(id, "Paid: "+ (string)price1);
             llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);
             counter = 0;
             llSetTimerEvent(10);
            }
      else if(amount == price2){
            llInstantMessage(id, "Paid: "+ (string)price2);
             llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);
             counter = 0;
              llSetTimerEvent(15);
            }
      else if(amount == price3){
            llInstantMessage(id, "Paid: "+ (string)price3);
             llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);
             counter = 0;
              llSetTimerEvent(20);
            }
        }

            timer()
            {
                //price

                --counter;

                if(counter <= 0)
                {
                    llSay(0,"over");
                    llSetTimerEvent(0);
                    counter = 0;
                     llSetPayPrice(PAY_HIDE, [price ,price1, price2, price3]);
                     llSetText("Time Left: "+ (string)counter, <1.0,1.0,1.0>, 1);
            }

    }}