Hide particle?

I want to hide an particle effect .
I created a new object in the scene, and I've put the particle effect in effect tab . At beggining of scene I set visibility 0 to that object. But the effect is seen the same.
Should I use another command or something?

tk

You need to create a condition, set it to false, by default. Then you add the condition to the properties tab of the scene object & then setting condition to true or false will determine if the particle effect/images/whatever that are associated with the scene object are active/visible, or not.

Currently you can't fade in/out particle effects, which is a shame.

ah ok tk anyway..i use the condition so