 {
     private static var theInstance:NumberInterpolator;
     
+    /**
+     *  Constructor.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
+     */
     public function NumberInterpolator()
     {
         super();

                                    ResourceManager.getInstance();
    
    /**
     * Returns the singleton of this class. Since all NumberInterpolators
     * have the same behavior, there is no need for more than one instance.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10

    }

    /**
     *  Interpolation for NumberInterpolator consists of a simple
     *  parametric calculation between <code>startValue</code> and 
     *  <code>endValue</code>, using <code>fraction</code> as the 
     *  fraction of the elapsed time from start to end:
     *  
     *  <pre>return startValue + fraction * (endValue - startValue);</pre>
     *
     *  @param fraction The fraction elapsed of the 
     *  animation, between 0.0 and 1.0.
     *
     *  @param startValue The start value of the interpolation.
     *
     *  @param endValue The end value of the interpolation.
     *
     *  @return The interpolated value.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
