Load iPhone5 retina graphics

app.js

// Assuming you have the images following images, this should work fine
// images/[email protected]
// images/[email protected]

require("ImageHelper");

var window = Titanium.UI.createWindow({
		title: "My awesome window",
		backgroundImage: parse568hImages("/images/background.png")
});

ImageHelper.js

// I am pretty sure there is a sexier approach, but this works nicely
var isPhone5 = Ti.Platform.displayCaps.platformHeight == 568;

parse568hImages = function(imagePath) {
	if (isPhone5){
		// Do this because the filename could contain dots
		imagePath = imagePath.replace(".png","[email protected]");
		imagePath = imagePath.replace(".jpg","[email protected]");
		imagePath = imagePath.replace(".jpeg","[email protected]");
	}
	
	return imagePath;
};

You could use:

imagePath = imagePath.replace(/\.(png|jpg|jpeg)$/i, "-568h@2x.$1");