Main menu touch input for android

I found this snippet in the wiki

`var isQuitBtn = false;

function OnMouseUp()
{

if(isQuitBtn)

{

Application.Quit();
}
else
{
Application.LoadLevel(1);

}
}`

How can I make this work for Android so that it detects touch Input from the user?

http://unity3d.com/support/documentation/ScriptReference/Input-touches.html