Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/StructureFactory.java
* @return an empty computed column structure
	 */
	public static ComputedColumn createComputedColumn( )
	{
		return new ComputedColumn( );
	}
	/**
	 * Creates an empty action structure.
	 * 
	 * @return an empty action structure.
	 */
	public static Action createAction( )
	{
		return new Action( );
	}
	/**
	 * Creates an empty config variable structure.
	 * 
	 * @return an empty config variable structure
	 */
	public static ConfigVariable createConfigVar( )
	{
		return new ConfigVariable( );
	}
	/**
	 * Creates an empty custom color structure.
	 * 
	 * @return an empty custom color structure
	 */
	public static CustomColor createCustomColor( )