how to make a variable null

HI to all,
i want to make a variable null.I dont know how to achieve in javascript.

var gameobject1 : GameObject;

if(gameobject1 == Null)
{
gameobject1 = GameObject.Find(“Player”);
}
else
{
gameobject1 = Null; ///// #pragma strict doesn’t allow this gameobject1 = “” ;
}

help me guys ,Thanks in advance

regard’s
rajesh

Null should be lower case: null

Perhaps also you need to give gameobject1 an initalized value before accessing it:

var gameobject1 : GameObject = null;

if (gameobject1 == null)
{

What kind of errors you got?

Null should be lower case: null - lol how did i miss that?

null working fine thanks guys. I thought reserved word change its color to red.