personal javascript

[Frank68]

Hi

In this code for page change

Code:

$(function(){
  if (typeof objectStore !== 'undefined') {
    var id = Scada.encodeGroupAddress('32/1/50');

    objectStore.addListener(id, function(object, type) {
      if (type == 'value') {
        showPlan(216);
      }
    });
  }
});

 is it possible to execute the action only when the value is increased?