setProperty( SimpleMasterPage.SHOW_HEADER_ON_FIRST_PROP, Boolean
setProperty( ISimpleMasterPageModel.SHOW_HEADER_ON_FIRST_PROP, Boolean
	public void setShowHeaderOnFirst( boolean showHeaderOnFirst )			throws SemanticException	{		setProperty( SimpleMasterPage.SHOW_HEADER_ON_FIRST_PROP, Boolean				.valueOf( showHeaderOnFirst ) );	}