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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <title>Circle</title>    <script type="text/JavaScript">    <!-- HIDE FROM INCOMPATIBLE BROWSERS     function Circle(radius) {        this.radius = radius;        this.area = Math.pow(radius, 2) / Math.PI;        this.circ = 2 * Math.PI ? radius;    }    // STOP HIDING FROM INCOMPATIBLE BROWSERS -->    </script>  </head>  <body>    <script type="text/JavaScript">    <!-- HIDE FROM INCOMPATIBLE BROWSERS    var circle1 = new Circle(2);    document.writeln("<p>Circle with radius 2<br />");    document.writeln("Area: "+circle1.area.toFixed(2)+"<br />");    document.writeln("Circumference: "+circle1.circ.toFixed(2)+"<br />");      document.writeln("</p>");    var circle1 = new Circle(14);    document.writeln("<p>Circle with radius 14<br />");    document.writeln("Area: "+circle2.area.toFixed(2)+"<br />");    document.writeln("Circumference: "+circle2.circ.toFixed(2)+"<br />");      document.writeln("</p>");    var circle3 = new Circle(43);    document.writeln("</p>Circle with radius 43<br />");    document.writeln("Area: "+circle3.area.toFixed(2)+"<br />");    document.writeln("Circumference: "+circle3.circ.toFixed(2)+"</p>");      // STOP HIDING FROM INCOMPATIBLE BROWSERS -->    </script>  </body></html>