diff --git a/pamela.js b/pamela.js
index c622a95..e9ed32f 100644
--- a/pamela.js
+++ b/pamela.js
@@ -1,183 +1,208 @@
+var context;
+
+// Class Vector 
 function Vector(x, y, z) {
 	this.x = x;
 	this.y = y;
 	this.z = z;
 	this.w = 1;
-	this.add = function(v) {
-		this.x += v.x;
-		this.y += v.y;
-		this.z += v.z;
-	};
-	this.subtract = function(v) {
-		this.x -= v.x;
-		this.y -= v.y;
-		this.z -= v.z;
-	};
-	this.scale = function(s) {
-		this.x *= s;
-		this.y *= s;
-		this.z *= s;
-	};
-	this.rotateX = function(a) {
-		var c = p.cos(a);
-		var s = p.sin(a);
-		this.y = this.y * c + this.z * s;
-		this.z = this.z * c - this.y * s;
-	};
-	this.rotateY = function(a) {
-		var c = p.cos(a);
-		var s = p.sin(a);
-		this.x = this.x * c + this.z * s;
-		this.z = this.z * c - this.x * s;
-	};
-	this.rotateZ = function(a) {
-		var c = p.cos(a);
-		var s = p.sin(a);
-		this.x = this.x * c + this.y * s;
-		this.y = this.y * c - this.x * s;
-	};
-	this.distance = function(v) {
-		if (typeof v == "undefined") {
-			return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
-		}
-		var xd = this.x - v.x;
-		var yd = this.y - v.y;
-		var zd = this.z - v.z;
-		return Math.sqrt(xd * xd + yd * yd + zd * zd);
-	};
-	this.clone = function() {
-		return new Vector(this.x, this.y, this.z);
-	};
-	this.project = function(cam) {
-		var d = this.clone();
-		d.subtract(cam);
-		if (d.z < 0) return false;
-		var s = (p.width / 2) / d.distance();
-		return { x: d.x * s, y: d.y * s, scale: s };
-	};
 }
 
+Vector.prototype.add = function(v) {
+	this.x += v.x;
+	this.y += v.y;
+	this.z += v.z;
+};
+
+Vector.prototype.subtract = function(v) {
+	this.x -= v.x;
+	this.y -= v.y;
+	this.z -= v.z;
+};
+
+Vector.prototype.scale = function(s) {
+	this.x *= s;
+	this.y *= s;
+	this.z *= s;
+};
+
+Vector.prototype.rotateX = function(a) {
+	var c = Math.cos(a);
+	var s = Math.sin(a);
+	this.y = this.y * c + this.z * s;
+	this.z = this.z * c - this.y * s;
+};
+
+Vector.prototype.rotateY = function(a) {
+	var c = p.cos(a);
+	var s = p.sin(a);
+	this.x = this.x * c + this.z * s;
+	this.z = this.z * c - this.x * s;
+};
+
+Vector.prototype.rotateZ = function(a) {
+	var c = p.cos(a);
+	var s = p.sin(a);
+	this.x = this.x * c + this.y * s;
+	this.y = this.y * c - this.x * s;
+};
+
+Vector.prototype.distance = function(v) {
+	if (typeof v == "undefined") {
+		return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
+	}
+	var xd = this.x - v.x;
+	var yd = this.y - v.y;
+	var zd = this.z - v.z;
+	return Math.sqrt(xd * xd + yd * yd + zd * zd);
+};
+
+Vector.prototype.clone = function() {
+	return new Vector(this.x, this.y, this.z);
+};
+
+Vector.prototype.project = function(cam) {
+	var d = this.clone();
+	d.subtract(cam);
+	if (d.z < 0) return false;
+	var s = (p.width / 2) / d.distance();
+	return { x: d.x * s, y: d.y * s, scale: s };
+};
+
+// Class Matrix
 function Matrix(m) {
 	if (typeof m == "undefined")
 		m = [[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]];
 	this.m = m;
-	this.multiplyVector = function(v) {
-
-		// Initialize the result vector.
-		var result = new Vector();
-		var m = this.m;
-
-		// Perform the multiplication
-		result.x = m[0][0]*v.x + m[0][1]*v.y + m[0][2]*v.z + m[0][3];
-		result.y = m[1][0]*v.x + m[1][1]*v.y + m[1][2]*v.z + m[1][3];
-		result.z = m[2][0]*v.x + m[2][1]*v.y + m[2][2]*v.z + m[2][3];
-		result.w = m[3][0]*v.x + m[3][1]*v.y + m[3][2]*v.z + m[3][3]; 
-		
-		return result;
-	};
-	this.multiplyMatrix = function(m) {
-		this.m = this._mult(m);
-		return this;
-	};
-	this.resetMatrix = function() {
-		// identity and translate the axes to the center of the canvas.
-		this.m = [[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]];
-	};
-	this.rotateX = function(angle) {
-		var c = Math.cos(angle);
-		var s = Math.sin(angle);
-		this.m = this._mult([[1, 0, 0, 0],[0, c, -s, 0],[0, s, c, 0],[0, 0, 0, 1]]);
-		return this;
-	};
-	this.rotateY = function(angle) {
-		var c = Math.cos(angle);
-		var s = Math.sin(angle);
-		this.m = this._mult([[c, 0, s, 0],[0, 1, 0, 0],[-s, 0, c, 0],[0, 0, 0, 1]]);
-		return this;
-	};
-	this.rotateZ = function(angle) {
-		var c = Math.cos(angle);
-		var s = Math.sin(angle);
-		this.m = this._mult([[c, -s, 0, 0],[s, c, 0, 0],[0, 0, 1, 0],[0, 0, 0, 1]]);
-		return this;
-	};
-	this.scale = function(scaleX, scaleY, scaleZ) {
-		this.m = this._mult([[scaleX,0,0,0],[0,scaleY,0,0],[0,0,scaleZ,0],[0,0,0,1]]);
-		return this;
-	};
-	this.translate = function(dX, dY, dZ) {
-		this.m = this._mult([[1,0,0,dX],[0,1,0,dY],[0,0,1,dZ],[0,0,0,1]]);
-		return this;
-	};
-	this.project = function(v) {
-		var pj = this.multiplyVector(v);
-		pj.x /= pj.z / (p.width / 2);
-		pj.y /= pj.z / (p.width / 2);
-		return pj;
-	};
-	this._mult = function(m) {
-		var m1 = this.m;
-		var m2 = m;
-		var result = [[],[],[],[]]; 
-		for(var i = 0; i < 4; i++){
-			result[i][0] = m1[i][0] * m2[0][0] + m1[i][1] * m2[1][0] + m1[i][2] * m2[2][0] + m1[i][3] * m2[3][0];
-			result[i][1] = m1[i][0] * m2[0][1] + m1[i][1] * m2[1][1] + m1[i][2] * m2[2][1] + m1[i][3] * m2[3][1];
-			result[i][2] = m1[i][0] * m2[0][2] + m1[i][1] * m2[1][2] + m1[i][2] * m2[2][2] + m1[i][3] * m2[3][2];
-			result[i][3] = m1[i][0] * m2[0][3] + m1[i][1] * m2[1][3] + m1[i][2] * m2[2][3] + m1[i][3] * m2[3][3];
-		}
-		return result;
-	};
 }
 
-function alphaForDepth(d, start, cutoff) {
-	d = d < cutoff ? cutoff : d > start ? start : d;
-	return 1 - (d - start) / (cutoff - start);
-}
+Matrix.prototype.multiplyVector = function(v) {
 
+	// Initialize the result vector.
+	var result = new Vector();
+	var m = this.m;
+
+	// Perform the multiplication
+	result.x = m[0][0]*v.x + m[0][1]*v.y + m[0][2]*v.z + m[0][3];
+	result.y = m[1][0]*v.x + m[1][1]*v.y + m[1][2]*v.z + m[1][3];
+	result.z = m[2][0]*v.x + m[2][1]*v.y + m[2][2]*v.z + m[2][3];
+	result.w = m[3][0]*v.x + m[3][1]*v.y + m[3][2]*v.z + m[3][3]; 
+	
+	return result;
+};
+
+Matrix.prototype.multiplyMatrix = function(m) {
+	this.m = this._mult(m);
+	return this;
+};
+
+Matrix.prototype.resetMatrix = function() {
+	// identity and translate the axes to the center of the canvas.
+	this.m = [[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]];
+};
+
+Matrix.prototype.rotateX = function(angle) {
+	var c = Math.cos(angle);
+	var s = Math.sin(angle);
+	this.m = this._mult([[1, 0, 0, 0],[0, c, -s, 0],[0, s, c, 0],[0, 0, 0, 1]]);
+	return this;
+};
+
+Matrix.prototype.rotateY = function(angle) {
+	var c = Math.cos(angle);
+	var s = Math.sin(angle);
+	this.m = this._mult([[c, 0, s, 0],[0, 1, 0, 0],[-s, 0, c, 0],[0, 0, 0, 1]]);
+	return this;
+};
+
+Matrix.prototype.rotateZ = function(angle) {
+	var c = Math.cos(angle);
+	var s = Math.sin(angle);
+	this.m = this._mult([[c, -s, 0, 0],[s, c, 0, 0],[0, 0, 1, 0],[0, 0, 0, 1]]);
+	return this;
+};
+
+Matrix.prototype.scale = function(scaleX, scaleY, scaleZ) {
+	this.m = this._mult([[scaleX,0,0,0],[0,scaleY,0,0],[0,0,scaleZ,0],[0,0,0,1]]);
+	return this;
+};
+
+Matrix.prototype.translate = function(dX, dY, dZ) {
+	this.m = this._mult([[1,0,0,dX],[0,1,0,dY],[0,0,1,dZ],[0,0,0,1]]);
+	return this;
+};
+
+Matrix.prototype.project = function(v) {
+	var pj = this.multiplyVector(v);
+	pj.x /= pj.z / (p.width / 2);
+	pj.y /= pj.z / (p.width / 2);
+	return pj;
+};
+
+Matrix.prototype._mult = function(m) {
+	var m1 = this.m;
+	var m2 = m;
+	var result = [[],[],[],[]]; 
+	for(var i = 0; i < 4; i++){
+		result[i][0] = m1[i][0] * m2[0][0] + m1[i][1] * m2[1][0] + m1[i][2] * m2[2][0] + m1[i][3] * m2[3][0];
+		result[i][1] = m1[i][0] * m2[0][1] + m1[i][1] * m2[1][1] + m1[i][2] * m2[2][1] + m1[i][3] * m2[3][1];
+		result[i][2] = m1[i][0] * m2[0][2] + m1[i][1] * m2[1][2] + m1[i][2] * m2[2][2] + m1[i][3] * m2[3][2];
+		result[i][3] = m1[i][0] * m2[0][3] + m1[i][1] * m2[1][3] + m1[i][2] * m2[2][3] + m1[i][3] * m2[3][3];
+	}
+	return result;
+};
+
+
+// Class Node 
 function Node(name) {
 	this.name = name;
-	var size = Math.min(p.width, p.height);
+	var size = Math.min(p.width, p.height);	
 	this.position = new Vector(
 		p.random(size) - (size / 2), 
 		p.random(size) - (size / 2), 
 		p.random(size) - (size / 2));
 	this.position.scale(0.5);
-	this.project = function(m) {
-		this.projection = m.project(this.position);
-		this.alpha = 255 * alphaForDepth(this.projection.z, 0, -200);
-	};
-	this.draw = function() {
-		var s = 5000 / -this.projection.z;
-		p.fill(p.color(164 + this.alpha  * 0.25));
-		p.ellipse(this.projection.x, this.projection.y, s, s);
-		p.context.font = s / 2 + "pt sans-serif";
-		p.fill(p.color(164, 192 + this.alpha  * 0.25, 164));
-		p.context.fillText(this.name, this.projection.x + s, this.projection.y + s / 2);
-	};
-	this.update = function() {
-	};
-} 
+}
 
+Node.prototype.alphaForDepth = function(d, start, cutoff) {
+	d = d < cutoff ? cutoff : d > start ? start : d;
+	return 1 - (d - start) / (cutoff - start);
+};
+
+Node.prototype.project = function(m) {
+	this.projection = m.project(this.position);
+	this.alpha = 255 * this.alphaForDepth(this.projection.z, 0, -200);
+};
+
+Node.prototype.draw = function() {
+	var s = 5000 / -this.projection.z;
+	p.fill(p.color(164 + this.alpha  * 0.25));
+	p.ellipse(this.projection.x, this.projection.y, s, s);
+	p.context.font = s / 2 + "pt sans-serif";
+	p.fill(p.color(164, 192 + this.alpha  * 0.25, 164));
+	p.context.fillText(this.name, this.projection.x + s, this.projection.y + s / 2);
+};
+
+Node.prototype.update = function() {
+};
+
+
+// Class NorbertNode 
+jQuery.extend(NorbertNode.prototype, Node.prototype);
 function NorbertNode() {
 	this.norbert = p.loadImage("norbert.png");
 	this.position = new Vector(0, 0, 0);
-	this.project = function(m) {
-		this.projection = m.project(this.position);
-		this.alpha = 255 * alphaForDepth(this.projection.z, -200, -400);
-	};
-	this.draw = function() {
-		var s = this.projection.z / (p.width / 2);
-		s *= 3;
-		var x = this.projection.x - (186 / s);
-		var y = this.projection.y - (150 / s);
-		//var xx = this.projection.x + (186 * s);
-		//var yy = this.projection.y + (240 * s);
-		//var x = Math.floor(this.projection.x - 186); 
-		//var y = Math.floor(this.projection.y - 60); 
-		p.image(this.norbert, x, y, 372 / s, 300 / s);
-	};	
 }
 
+NorbertNode.prototype.draw = function() {
+	var s = this.projection.z / (p.width / 2);
+	s *= 3;
+	var x = this.projection.x - (186 / s);
+	var y = this.projection.y - (150 / s);
+	p.image(this.norbert, x, y, 372 / s, 300 / s);
+};	
+
+
 var p;
 
 $(document).ready(function() {
@@ -187,6 +212,7 @@ $(document).ready(function() {
 function goPamela() {
 	
 	p = Processing("pamela");
+	context = p.context;
 
 	var entities = ["sandb", "fs111", "tazo", "wouter", "unknown", "unknown", "unknown", "unknown"];
 	var m = new Matrix();
@@ -200,7 +226,6 @@ function goPamela() {
 		var count = 0;
 		this.nodes = [];
 		this.nodes[count++] = new NorbertNode();
-		//for (var j = 0; j < 10; j++)
 		for (var i = 0; i < entities.length; i++) {
 			this.nodes[count++] = new Node(entities[i]);
 		}