final HtmlContentSourceType type = property().element().property( HtmlPanelDef.PROP_CONTENT_SOURCE_TYPE ).service( MasterConversionService.class ).convert( value, HtmlContentSourceType.class );
if( value == null )
{
element.removeChildNode( PATH_URL );
element.removeChildNode( PATH_CONTENT );
}
else if( type == HtmlContentSourceType.REMOTE )
{
element.removeChildNode( PATH_CONTENT );
element.getChildNode( PATH_URL, true );