Minor tidy ups

- whitespace fix
- added a few var's

springy.js

@@ -35,13 +35,13 @@ var Graph = function()
 	this.eventListeners = [];
 };
 
-Node = function(id, data)
+var Node = function(id, data)
 {
 	this.id = id;
 	this.data = typeof(data) !== 'undefined' ? data : {};
 };
 
-Edge = function(id, source, target, data)
+var Edge = function(id, source, target, data)
 {
 	this.id = id;
 	this.source = source;

springyui.js

@@ -26,14 +26,14 @@ Copyright (c) 2010 Dennis Hotson
 (function() {
 
 jQuery.fn.springy = function(params) {
-    var graph = params.graph;
-    if(!graph){
-        return;
-    }
-    
-    var stiffness = params.stiffness || 400.0;
-    var repulsion = params.repulsion || 400.0;
-    var damping = params.damping || 0.5;
+	var graph = params.graph;
+	if(!graph){
+			return;
+	}
+
+	var stiffness = params.stiffness || 400.0;
+	var repulsion = params.repulsion || 400.0;
+	var damping = params.damping || 0.5;
 
 	var canvas = this[0];
 	var ctx = canvas.getContext("2d");