--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OSCON/WRTKit/UI/SlidingTransition.js	Fri Jul 17 15:52:45 2009 -0700
@@ -0,0 +1,75 @@
+
+
+function SlidingScreenTransition(oldView, newView, direction, callback)
+{
+	/* DOM element to be "pushed out" */
+	this.currentScreen = oldView.rootElement;
+ 
+	/* DOM element to be "pulled in" */
+	this.nextScreen = newView.rootElement;
+ 
+	/* direction of the sliding transition */
+	this.direction = direction;
+	
+	// callback when done
+	this.callback = callback;
+}
+
+/* constant value for right-to-left transitions */
+SlidingScreenTransition.DIRECTION_LEFT = 1;
+ 
+/* constant value for left-to-right transitions */
+SlidingScreenTransition.DIRECTION_RIGHT = -1;
+ 
+/* total number of steps of the sliding transition */
+SlidingScreenTransition.TRANSITION_STEPS = 10;
+
+
+SlidingScreenTransition.prototype.start = function()
+{
+	var self = this;
+	
+	this.nextScreen.style.top = '0px';
+	this.nextScreen.style.left = (this.direction * screen.availWidth) + 'px';
+	
+	this.transitionStep = 0;
+	
+	this.transitionInterval = setInterval(
+		function()
+		{
+			self.doTransitionStep();
+		},
+		100
+	);
+}
+
+SlidingScreenTransition.prototype.stop	 = function() {
+	clearInterval ( this.transitionInterval );
+	if (this.callback) {
+		this.callback.call();
+	}
+}
+
+
+SlidingScreenTransition.prototype.doTransitionStep = function()
+{
+	this.transitionStep++;
+	
+	if(this.transitionStep <= SlidingScreenTransition.TRANSITION_STEPS)
+	{
+		this.nextScreen.style.left = 
+			(screen.availWidth * 
+			(SlidingScreenTransition.TRANSITION_STEPS - this.transitionStep) * 
+			this.direction / SlidingScreenTransition.TRANSITION_STEPS)
+			 + 'px';
+		
+		this.currentScreen.style.left = 
+			(- screen.availWidth * this.transitionStep * this.direction / 
+			SlidingScreenTransition.TRANSITION_STEPS) 
+			+ 'px';
+	}
+	else
+	{
+		this.stop();
+	}
+}
\ No newline at end of file