Add this to the header of a Hype document to be able to move through scenes by using the keyboard arrows which may be convenient for creating presentations with Hype.

hype-slides

<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<script>
// http://mikemurko.com/general/jquery-keycode-cheatsheet/
var speed = 0.8; //transition speed
var transition = "push"; //types of transition: instant, fade, swap, push

var nextKeys= [39, 40, 34];
var prevKeys= [37, 38, 33];

$(function(){
	$( "body" ).keyup(function(e){
	var hypeDocument = getHypeDocument();
		var t = transitionType(hypeDocument, transition);
		if($.inArray(e.which, nextKeys) > -1){
			hypeDocument.showNextScene(t[0], speed);
		}else if ($.inArray(e.which, prevKeys) > -1){
			hypeDocument.showPreviousScene(t[1], speed)
		}
	});	
});

function transitionType(hypeDocument,type){
	var result = [hypeDocument.kSceneTransitionInstant, hypeDocument.kSceneTransitionInstant];
	if(type == "fade"){
		 result = [hypeDocument.kSceneTransitionCrossfade, hypeDocument.kSceneTransitionCrossfade];
	} else if (type == "swap") {
		result = [hypeDocument.kSceneTransitionSwap, hypeDocument.kSceneTransitionSwap];
	} else if (type = "push") {
		result = [hypeDocument.kSceneTransitionPushRightToLeft, hypeDocument.kSceneTransitionPushLeftToRight];
	}
	return result;
}

function getHypeDocument(){
	var name = "index";
	for(var key in HYPE.documents){
		name = key;
      	}
      	return HYPE.documents[name];
}

</script>