macro "Mark [m]" {
        if (!isOpen("Panel.tif")){
                newImage("Panel.tif", "8-bit black", 500, 500, 1);
                makeOval(100, 100, 50, 50);
                run("Add Selection...");
                run("Select None");
                return;
        }       
        showStatus("hit");
        srcID = getImageID;
        getCursorLoc(x, y, z, flags);
        roiManager("reset");
        run("To ROI Manager");
        run("From ROI Manager");
        selectWindow("ROI Manager");//--- line A
        selectImage(srcID);
        makeOval(x-8, y-8, 16, 16);
        run("Add Selection...");        
        run("Select None");     
        roiManager("reset");
        run("Labels...", "color=white font=12 draw");//no Labels
}