loading multiple levels error

var isQuitButton = false;

function OnMouseEnter()
{
//change color of text
renderer.material.color = Color.red;
}

function OnMouseExit()
{
//change color of text
renderer.material.color = Color.white;
}

function OnMouseUp()
{
//are we dealing with a quit button?
if( isQuitButton )
{
Application.Quit();
}
else
{
//load levels
Application.LoadLevel(1); //this is my game scene

Application.LoadLevel(2); //this is my credits scene

Application.LoadLevel(3); //and the instructions scenes level 3 always pop up when i click level 1 or 2
}
}

 

What are you trying to do? You're loading the first level, then instantly unloading it and loading the second, then unloading that and loading the 3rd. Seems like it's doing exactly what you're telling it to do.