What are these colons and question marks in javascript?

In particular, what does this code mean?

	document.slideform.slidebutton.value = (text == "Stop") ? "Start" : "Stop";

HTML:

 

It says that if the value is "stop", change it to "start", otherwise (it says "start") make it "stop". It's what's called a tertiary statement.

What "slideform" and its child/attribute/whatever, "slidebutton" mean can't be known without seeing the assignment statements.

cheers,

gary

 

I always thought it was "if true"... the : I'd like to know... seems like "or".

 

Basically, it's an if else statement in shorthand.

cheers,

gary