// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults

// functions for preloading and swapping out images
var preloadFlag = false;
var previousImage;
function preloadImages(imgArray) {
	if (document.images) {
		for (i = 0; i < imgArray.length; i++) {
			img = new Image();
			img.src = imgArray[i];
		}
		preloadFlag = true;
	}
}

function change() {
	if (document.images && (preloadFlag)) {
		for (var i=0; i<change.arguments.length; i+=2) {
			document[change.arguments[i]].src = change.arguments[i+1];
		}
	}
}