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<html:select property="selectedDelccgs" multiple="true" style="width:180px;height:300px">
        <html:options property="selectedccgids" labelProperty="selectedccgnames"/>
      </html:select>
<html:button property="button" value="delselected" onclick="delselected()"> </html:button>
</html:form>
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function delselected()
{
  var pa =  document.getElementsByName("selectedDelccgs")[0];
  for(var i = 0; i < pa.options.length-1; i++)
  {
      if(pa.options[i].selected == true)
      {
        pa.options.remove(i);
        i--;
      }
  }
}
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