Problem counting down variable

[DisneyBoy]

In a section of the game I am working on I need a piece of equipment to decay in quality as the game progresses. I have a global action that every 10 seconds the (quality ) decreases by a random number between 1-10:
every 10 seconds subtract (9)+1 from quality.
The equation works, but only when I am in the frame where the
piece of equipment is. If I leave the frame, the countdown stops. How do I get this option to work when I am in other parts of the game?

[camelman]

Checking "Global Object" in the object's properties>runtime options, might have something to with this. Otherwise, you might have to create the object in every frame or use an array to check if the item was collected. You can't subtract from the quality of the object if it does not exist!