Check renderer.enabled statement from another object

I want to check if a renderer of an object is enabled (true or false), i know kinda how to do this, but i can't get the final piece done. Here's what i have so far:

if (jump.GameObject renderer.enabled == true)
{
 renderer.enabled = false;
}

I know this code is wrong, and i know it's inside the if statement, but i just don't remember how to do this..

remove GameObject:

if (jump.renderer.enabled == true)

assuming jump is a reference to your other object

Is jump your gameobject in question if it's renderer is enabled or not?

If so it should be:

if (jump.gameObject.renderer.enabled == true)
{
    jump.gameObject.renderer.enabled = false;
}

Edit: (I forget if you actually need to use .gameObject so I included it to be safe)

Okay for the ones wanting the same thing, this is my final code:

var jump : Transform ;

function Update()
{
if (jump.renderer.enabled == true)
{
renderer.enabled = false;
}
}