09_stateful_counters/src/counter.html

<div>
    <r:v name="counter"/>
    
    <form action="${v SUBMISSION:FORM:decrease/}" method="post">
        <r:v name="SUBMISSION:PARAMS:decrease"/>
        <input type="submit" value=" - " />
    </form>
    
    <form action="${v SUBMISSION:FORM:increase/}" method="post">
        <r:v name="SUBMISSION:PARAMS:increase"/>
        <input type="submit" value=" + " />
    </form>
</div>