Are you trying to set it for a DiagramApplet from JavaScript?

Try this code:

var diagView = applet.getDiagramView();
var cursor = diagView.getPointerCursor();
diagView.setPointerCursor(cursor.getPredefinedCursor(7));
 

You can find the constants from java.awt.Cursor copied below. You might also check the getSystemCustomCursor method. I'm not sure how it's supposed to be used though.

I hope that helps,
Stoyan

    /**
     * The default cursor type (gets set if no cursor is defined).
     */
    public static final int      DEFAULT_CURSOR              = 0;

    /**
     * The crosshair cursor type.
     */
    public static final int      CROSSHAIR_CURSOR            = 1;

    /**
     * The text cursor type.
     */
    public static final int      TEXT_CURSOR                  = 2;

    /**
     * The wait cursor type.
     */
    public static final int      WAIT_CURSOR                  = 3;

    /**
     * The south-west-resize cursor type.
     */
    public static final int      SW_RESIZE_CURSOR            = 4;

    /**
     * The south-east-resize cursor type.
     */
    public static final int      SE_RESIZE_CURSOR            = 5;

    /**
     * The north-west-resize cursor type.
     */
    public static final int      NW_RESIZE_CURSOR            = 6;

    /**
     * The north-east-resize cursor type.
     */
    public static final int      NE_RESIZE_CURSOR            = 7;

    /**
     * The north-resize cursor type.
     */
    public static final int      N_RESIZE_CURSOR            = 8;

    /**
     * The south-resize cursor type.
     */
    public static final int      S_RESIZE_CURSOR            = 9;

    /**
     * The west-resize cursor type.
     */
    public static final int      W_RESIZE_CURSOR                  = 10;

    /**
     * The east-resize cursor type.
     */
    public static final int      E_RESIZE_CURSOR                  = 11;

    /**
     * The hand cursor type.
     */
    public static final int      HAND_CURSOR                  = 12;

    /**
     * The move cursor type.
     */
    public static final int      MOVE_CURSOR                  = 13;