How do we call a method in particular ItemRenderer. Also the ItemRenderer is our own Custom Component?

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< id="comboBox" dataprovider="{statesXMLList}" labelfield="@name" itemrenderer="ComboBoxItemRenderer">
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< /mx:Application>
View ComboBoxItemRenderer.mxml
< ?xml version="1.0" encoding="utf-8"?>
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<.. text="{data.@name}" onclick="MyOwnMethodThatIWantToCall()">
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