<com:TContent ID="Content"> <com:TImageMap ImageUrl=<%~hotspot.jpg%> AlternateText="Navigate buttons" OnClick="buttonClicked" > <com:TRectangleHotSpot hotspotmode="Navigate" NavigateUrl="navigate1.htm" alternatetext="Button 1" top="30" left="175" bottom="110" right="355" /> <com:TRectangleHotSpot hotspotmode="PostBack" PostBackValue="test" CausesValidation="true" ValidationGroup="Group1" alternatetext="Button 2" top="155" left="175" bottom="240" right="355" /> <com:TRectangleHotSpot hotspotmode="Inactive" NavigateUrl="navigate3.htm" alternatetext="Button 3" top="285" left="175" bottom="365" right="355" /> </com:TImageMap> <com:TTextBox ID="TextBox" /> <com:TRequiredFieldValidator ValidationGroup="Group1" EnableClientScript="true" ControlToValidate="TextBox" Text="required" /> </com:TContent>