Silverlight in AJAX

Question

Hi........

I am working in ajax and use silverlight. but i face a problem that how can we implement ajax with silverlight and define about the canvas in silverlight?

<Rectangle Width="100" Height="100"         Canvas.Top="0" Canvas.Left="0"         RadiusX="15" RadiusY="15">     <Rectangle.Fill><LinearGradientBrush               StartPoint="0,0" EndPoint="0,1">       <GradientStop Offset="0" Color="Green"/>       <GradientStop Offset="0.6" Color="Lime"/>       </LinearGradientBrush>     </Rectangle.Fill>