diff --git a/public/X3DOMTutorial/coordinatesystem.html b/public/X3DOMTutorial/coordinatesystem.html
index a1524c3a2c614644cb97847e4b3cf6967333cc76..31ef1b324db4a7ab7a7f61062cc1322c28514964 100644
--- a/public/X3DOMTutorial/coordinatesystem.html
+++ b/public/X3DOMTutorial/coordinatesystem.html
@@ -1,119 +1,119 @@
-﻿<html>
-
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-	<title> Coordinate system </title>
-	<link rel="stylesheet" type="text/css" href="x3dom.css">
-	</link>
-</head>
-
-<body>
-	<h1> Coordinate system </h1>
-	<table width="100%" height="85%" border="0">
-		<tr>
-			<td width="50%" align="center" valign="top" scope="col">
-				<X3D id="shapedata" width="600px" height="600px" style="float:left">
-					<Scene>
-						<background transparency='0' skyColor='1 1 1'> </background>
-						<!-- Invoke CoordinateAxes in other scenes as an Inline child inside a scaling Transform node, at the topmost level of the scene graph. -->
-						<!-- Each arrow goes from +1m to -1m to allow linear scaling to fit a scene -->
-						<!-- Note each label rotates about the scene's vertical Y axis for consistency, enabling local orientation by user -->
-						<Group>
-							<!-- Vertical Y arrow and label -->
-							<Group DEF='ArrowGreen'>
-								<Shape>
-									<Appearance DEF='Green'>
-										<Material diffuseColor='0 1 0'> </Material>
-									</Appearance>
-									<Cylinder DEF='ArrowCylinder' radius='.025' top='false'> </Cylinder>
-								</Shape>
-								<Transform translation='0 1 0'>
-									<Shape>
-										<Appearance USE='Green'> </Appearance>
-										<Cone DEF='ArrowCone' bottomRadius='.05' height='.1'> </Cone>
-									</Shape>
-								</Transform>
-							</Group>
-							<Transform translation='0 1.08 0'>
-								<Billboard>
-									<Shape>
-										<Appearance DEF='LABEL_APPEARANCE'>
-											<Material diffuseColor='0 0 0'> </Material>
-										</Appearance>
-										<Text string='"Y"'>
-											<FontStyle DEF='LABEL_FONT' family='"SANS"' justify='"MIDDLE" "MIDDLE"' size='.2'> </FontStyle>
-										</Text>
-									</Shape>
-								</Billboard>
-							</Transform>
-							<Transform rotation='0 0 1 -1.57079'>
-								<!-- Horizontal X arrow and label -->
-								<Group DEF='ArrowRed'>
-									<Shape>
-										<Appearance DEF='Red'>
-											<Material diffuseColor='.7 .1 .1' emissiveColor='.33 0 0' />
-										</Appearance>
-										<Cylinder USE='ArrowCylinder'> </Cylinder>
-									</Shape>
-									<Transform translation='0 1 0'>
-										<Shape>
-											<Appearance USE='Red'> </Appearance>
-											<Cone USE='ArrowCone'> </Cone>
-										</Shape>
-									</Transform>
-								</Group>
-								<Transform rotation='0 0 1 1.57079' translation='.072 1.1 0'>
-									<!-- note label rotated back to original coordinate frame -->
-									<Billboard>
-										<Shape>
-											<Appearance USE='LABEL_APPEARANCE'>
-											</Appearance>
-											<Text string='"X"'>
-												<FontStyle USE='LABEL_FONT'>
-											</Text>
-										</Shape>
-									</Billboard>
-								</Transform>
-							</Transform>
-							<Transform rotation='1 0 0 1.57079'>
-								<!-- Z arrow and label -->
-								<Group DEF='ArrowBlue'>
-									<Shape>
-										<Appearance DEF='Blue'>
-											<Material diffuseColor='0  0 1'> </Material>
-										</Appearance>
-										<Cylinder USE='ArrowCylinder'> </Cylinder>
-									</Shape>
-									<Transform translation='0 1 0'>
-										<Shape>
-											<Appearance USE='Blue'> </Appearance>
-											<Cone USE='ArrowCone'> </Cone>
-										</Shape>
-									</Transform>
-								</Group>
-								<Transform rotation='1 0 0 -1.57079' translation='0 1.1 .072'>
-									<!-- note label rotated back to original coordinate frame -->
-									<Billboard>
-										<Shape>
-											<Appearance USE='LABEL_APPEARANCE'>
-											</Appearance>
-											<Text string='"Z"'>
-												<FontStyle USE='LABEL_FONT'>
-											</Text>
-										</Shape>
-									</Billboard>
-								</Transform>
-							</Transform>
-						</Group>
-					</Scene>
-				</X3D>
-				</p>
-			</td>
-			<td width="50%" align="left" valign="top" scope="col">
-				In X3DOM, a right hand coordinate system is used. The Y-axis is pointing up. <br> <br>
-				<img src="http://flylib.com/books/2/416/1/html/2/images/fig3-3.jpg" width="350" height="310" />
-			</td>
-			<script type="text/javascript" src="x3dom.js"></script>
-</body>
-
-</html>
\ No newline at end of file
+<html>
+
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+	<title> Coordinate system </title>
+	<link rel="stylesheet" type="text/css" href="x3dom.css">
+	</link>
+</head>
+
+<body>
+	<h1> Coordinate system </h1>
+	<table width="100%" height="85%" border="0">
+		<tr>
+			<td width="50%" align="center" valign="top" scope="col">
+				<X3D id="shapedata" width="600px" height="600px" style="float:left">
+					<Scene>
+						<background transparency='0' skyColor='1 1 1'> </background>
+						<!-- Invoke CoordinateAxes in other scenes as an Inline child inside a scaling Transform node, at the topmost level of the scene graph. -->
+						<!-- Each arrow goes from +1m to -1m to allow linear scaling to fit a scene -->
+						<!-- Note each label rotates about the scene's vertical Y axis for consistency, enabling local orientation by user -->
+						<Group>
+							<!-- Vertical Y arrow and label -->
+							<Group DEF='ArrowGreen'>
+								<Shape>
+									<Appearance DEF='Green'>
+										<Material diffuseColor='0 1 0'> </Material>
+									</Appearance>
+									<Cylinder DEF='ArrowCylinder' radius='.025' top='false'> </Cylinder>
+								</Shape>
+								<Transform translation='0 1 0'>
+									<Shape>
+										<Appearance USE='Green'> </Appearance>
+										<Cone DEF='ArrowCone' bottomRadius='.05' height='.1'> </Cone>
+									</Shape>
+								</Transform>
+							</Group>
+							<Transform translation='0 1.08 0'>
+								<Billboard>
+									<Shape>
+										<Appearance DEF='LABEL_APPEARANCE'>
+											<Material diffuseColor='0 0 0'> </Material>
+										</Appearance>
+										<Text string='"Y"'>
+											<FontStyle DEF='LABEL_FONT' family='"SANS"' justify='"MIDDLE" "MIDDLE"' size='.2'> </FontStyle>
+										</Text>
+									</Shape>
+								</Billboard>
+							</Transform>
+							<Transform rotation='0 0 1 -1.57079'>
+								<!-- Horizontal X arrow and label -->
+								<Group DEF='ArrowRed'>
+									<Shape>
+										<Appearance DEF='Red'>
+											<Material diffuseColor='.7 .1 .1' emissiveColor='.33 0 0' />
+										</Appearance>
+										<Cylinder USE='ArrowCylinder'> </Cylinder>
+									</Shape>
+									<Transform translation='0 1 0'>
+										<Shape>
+											<Appearance USE='Red'> </Appearance>
+											<Cone USE='ArrowCone'> </Cone>
+										</Shape>
+									</Transform>
+								</Group>
+								<Transform rotation='0 0 1 1.57079' translation='.072 1.1 0'>
+									<!-- note label rotated back to original coordinate frame -->
+									<Billboard>
+										<Shape>
+											<Appearance USE='LABEL_APPEARANCE'>
+											</Appearance>
+											<Text string='"X"'>
+												<FontStyle USE='LABEL_FONT'>
+											</Text>
+										</Shape>
+									</Billboard>
+								</Transform>
+							</Transform>
+							<Transform rotation='1 0 0 1.57079'>
+								<!-- Z arrow and label -->
+								<Group DEF='ArrowBlue'>
+									<Shape>
+										<Appearance DEF='Blue'>
+											<Material diffuseColor='0  0 1'> </Material>
+										</Appearance>
+										<Cylinder USE='ArrowCylinder'> </Cylinder>
+									</Shape>
+									<Transform translation='0 1 0'>
+										<Shape>
+											<Appearance USE='Blue'> </Appearance>
+											<Cone USE='ArrowCone'> </Cone>
+										</Shape>
+									</Transform>
+								</Group>
+								<Transform rotation='1 0 0 -1.57079' translation='0 1.1 .072'>
+									<!-- note label rotated back to original coordinate frame -->
+									<Billboard>
+										<Shape>
+											<Appearance USE='LABEL_APPEARANCE'>
+											</Appearance>
+											<Text string='"Z"'>
+												<FontStyle USE='LABEL_FONT'>
+											</Text>
+										</Shape>
+									</Billboard>
+								</Transform>
+							</Transform>
+						</Group>
+					</Scene>
+				</X3D>
+				</p>
+			</td>
+			<td width="50%" align="left" valign="top" scope="col">
+				In X3DOM, a right hand coordinate system is used. The Y-axis is pointing up. <br> <br>
+				<img src="https://flylib.com/books/2/416/1/html/2/images/fig3-3.jpg" width="350" height="310" />
+			</td>
+			<script type="text/javascript" src="x3dom.js"></script>
+</body>
+
+</html>
