Load Level when Key is pressed

I want a level to load when the Space Bar is pressed down. I tried using this script:

if (Input.GetKeyDown.KeyCode:Space);
 Application.LoadLevel("LevelOne");

I tried looking for the answer in the Search, nothing came up. Any suggestions?

if(Input.GetKeyDown(KeyCode.Space))
Application.LoadLevel(“Level One”);

if (Input.GetKeyDown(KeyCode.Space))