private String getTag(){
		StringBuffer builder = new StringBuffer();
		builder.append("<a href=\"graphic_info");
		builder.append("\" target=\"_rwt\" style=\"text-decoration:none;\">");
		builder.append(createImageTag("Graphic Info", graphicBtn));
		builder.append("</a> ");
		builder.append("<a href=\"broken_info");
		builder.append("\" target=\"_rwt\" style=\"text-decoration:none;\">");
		builder.append(createImageTag("Broked Info", brokedBtn));
		builder.append("</a> ");
		return builder.toString();
	}

grid.addSelectionListener( new SelectionAdapter() {
			  public void widgetSelected( SelectionEvent event ) {
			    if( event.detail == RWT.HYPERLINK ) {
			    	if("graphic_info".equals(event.text)){
			    	  ...
			    	}else if("broken_info".equals(event.text)){
                                  ...
			    	}
			    }
			  }
		});

private void createGrid(final Composite parent) {
		grid = new Grid(parent, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
		grid.setData( RWT.MARKUP_ENABLED, Boolean.TRUE );
		grid.setData(RWT.FIXED_COLUMNS, 2);
		GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).hint(SWT.DEFAULT, 460).grab(true, false).applyTo(grid);
		
		grid.setHeaderVisible( true );
		grid.setLinesVisible( true );
		
		grid.addSelectionListener( new SelectionAdapter() {
			  public void widgetSelected( SelectionEvent event ) {
				  
			    if( event.detail == RWT.HYPERLINK ) {
			    	if("graphic_info".equals(event.text)){
			    		...					
			    	}else if("broken_info".equals(event.text)){
			    		...
			    	}
			    }
			  }
		});
		
		createColumn( grid, null, "Workshop", 80, SWT.CENTER );
		createColumn( grid, null, "Machine", 80, SWT.CENTER );
		createColumn( grid, null, "Worker", 100, SWT.CENTER );
		createColumn( grid, null, "Line", 80, SWT.CENTER );
		createColumn( grid, null, "Time", 100, SWT.CENTER );
		
		
	}

	private GridColumn createColumn( Grid grid, GridColumnGroup group, String name, int width, int style ){
		GridColumn column;
		if( group == null ) {
			column = new GridColumn( grid, style );
		} else {
			column = new GridColumn( group, style );
		}
		column.setText( name );
		column.setWidth( width );
		return column;
	}
	
	
	
	private void queryReport(){
		grid.removeAll();
		
		GridColumnGroup group = new GridColumnGroup(grid, SWT.CENTER);
    	group.setText("Output(kg)");
		for(int i=1;i<6;i++){
			createColumn(grid, group, String.valueOf(i) + "Level", 100, SWT.CENTER);
		}
	}
	
	
	private void setInput(){
		grid.removeAll();
		GridItem gridItem = new GridItem( grid, SWT.NONE );
		gridItem.setText(getTag());
		for(int i=1; i<10;i++){
			gridItem.setText(i,String.valueOf(i));//workshop name
		}
	}
	
	private String getTag(){
		StringBuffer builder = new StringBuffer();
		builder.append("<a href=\"broken_info");
		builder.append("\" target=\"_rwt\" style=\"text-decoration:none;\">");
		builder.append(createImageTag("Broken Count", breakCountBtn));
		builder.append("</a> ");
		builder.append("<a href=\"graphic_info");
		builder.append("\" target=\"_rwt\" style=\"text-decoration:none;\">");
		builder.append(createImageTag("Line Info", breakLineBtn));
		builder.append("</a> ");
		return builder.toString();
	}
	
	private String createImageTag(String title, String url) {
		return "<img src='" + url
				+ "' width='16' height='16' style='padding-right:5px;border:none' title='" + title + "'/>";
	}
	
	private void registerImages() {
		try {
			breakLineBtn = registerImage("resources/twister_break.png");
			breakCountBtn = registerImage("resources/twister_bcount.png");
		} catch (IOException exception) {
			throw new RuntimeException("Failed to register images", exception);
		}
	}
	
	private static String registerImage(String resourceName) throws IOException {
		ResourceManager resourceManager = RWT.getResourceManager();
		if (!resourceManager.isRegistered(resourceName)) {
			InputStream inputStream = CLASSLOADER.getResourceAsStream(resourceName);
			if (inputStream == null) {
				throw new RuntimeException("Resource not found");
			}
			try {
				resourceManager.register(resourceName, inputStream);
			} finally {
				inputStream.close();
			}
		}
		return resourceManager.getLocation(resourceName);
	}