OS_IOS assigned to a variable

Console Logs

[INFO] :   Finished building the application in 16s 741ms
[INFO] :   Launching iOS Simulator
[INFO] :   ttttt/1.0 (6.2.2.42c7196)
[INFO] :   ANIMATED true

index.js

var ANIMATED;
function test(e) {
	if (OS_IOS) {
		
		ANIMATED = OS_IOS;
		alert('ANIMATED is '+ANIMATED);
		Ti.API.info('ANIMATED '+ANIMATED);	
	}

}
$.index.open();

index.xml

<Alloy>
	<Window class="container">
		<Label id="label" onClick="test">Hello, World</Label>
	</Window>
</Alloy>