Bug 132506 [Regression][Linux WS]Error on operation buttom in layout tab
Details: [Regression]Error on operation buttom in layout tab Setp: When I new a report design or template, it will be appear on preview state, but layout state.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/extension/FormPageDef.java
{
	private IConfigurationElement element;
	public String id;
	public String targetEditor;
	public String displayName;
	public String pageClass;
	public boolean visible = true;
	public String relative;
	public int position;
	FormPageDef( IConfigurationElement element )
	{
		this.element = element;
		id = loadStringAttribute( element, ATTRIBUTE_ID );
		displayName = loadStringAttribute( element, ATTRIBUTE_DISPLAY_NAME );
		pageClass = loadStringAttribute( element, ATTRIBUTE_CLASS );
		visible = loadBooleanAttribute( element, ATTRIBUTE_VISIBLE );
	}
	
	
	
	private String loadStringAttribute( IConfigurationElement element,
			String attributeName )
	{
		return element.getAttribute( attributeName );
	}
	private boolean loadBooleanAttribute( IConfigurationElement element,
			String attributeName )
	{
		String value = element.getAttribute( attributeName );
		if ( value != null )