On trigger exit not working

I am having trouble with on trigger exit function. When I enter the trigger it works properly, but even if im still in the trigger the OnTriggerExit Function will activate. Please help.

Code:

var trigger : int = 1;
var detection : int = 1;
var Timer : int = 2000;

function Start () {

}

function OnTriggerEnter (other : Collider) {
detection = 3;
	}
function OnTriggerExit (other : Collider) {
detection = 2;
if(detection == 2)
{
yield WaitForSeconds (5);
Debug.Log("Ware is he?");
}
	}
    function Update () {
    	if(detection == 3)
    	{
    	if(trigger == 1)
    	{
    	Debug.Log("Get Him!");
    	trigger = 0;
    	}
    	}
    }

Although not sure…
Try this method…

2 object you want to test trigger
Both give rigidbody and collider

Then, choose 1 object (the object you want to run the trigger script) and click collider isTrigger, another object no need.

Try run it and test, hope it helps.

Hey,have written a blog regarding “How to make your colliders work as triggers” and to cool stuff with it in Unity.

These blogs targets Developers who are just starting with unity.So help me to reach out to them.
link text
I hope it will be HelpFull.