diff --git a/src/osgPlugins/p3d/SlideEventHandler.cpp b/src/osgPlugins/p3d/SlideEventHandler.cpp
index 20b13369f..949cae77c 100644
--- a/src/osgPlugins/p3d/SlideEventHandler.cpp
+++ b/src/osgPlugins/p3d/SlideEventHandler.cpp
@@ -136,44 +136,44 @@ struct CallbackOperator : public ObjectOperator
 
     virtual void setPause(bool pause)
     {
-	osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
-	osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
-	ss3d::AnimationMaterialCallback* amc = dynamic_cast<ss3d::AnimationMaterialCallback*>(_callback.get());
-	if (apc)
-	{
+        osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
+        osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
+        ss3d::AnimationMaterialCallback* amc = dynamic_cast<ss3d::AnimationMaterialCallback*>(_callback.get());
+        if (apc)
+        {
             osg::notify(osg::INFO)<<"apc->setPause("<<pause<<")"<<std::endl;
             apc->setPause(pause);
-	}
-	if (tc)
-	{
+        }
+        if (tc)
+        {
             osg::notify(osg::INFO)<<"tc->setPause("<<pause<<")"<<std::endl;
             tc->setPause(pause);
-	}
-	if (amc)
-	{
+        }
+        if (amc)
+        {
             osg::notify(osg::INFO)<<"amc->setPause("<<pause<<")"<<std::endl;
             amc->setPause(pause);
-	}
+        }
     }
 
     virtual void reset()
     {
-	osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
-	osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
-	ss3d::AnimationMaterialCallback* amc = dynamic_cast<ss3d::AnimationMaterialCallback*>(_callback.get());
-	if (apc)
-	{
+        osg::AnimationPathCallback* apc = dynamic_cast<osg::AnimationPathCallback*>(_callback.get());
+        osgUtil::TransformCallback* tc = dynamic_cast<osgUtil::TransformCallback*>(_callback.get());
+        ss3d::AnimationMaterialCallback* amc = dynamic_cast<ss3d::AnimationMaterialCallback*>(_callback.get());
+        if (apc)
+        {
             apc->reset();
             apc->update(*_node);
-	}
-	if (tc)
-	{
-	}
-	if (amc)
-	{
+        }
+        if (tc)
+        {
+        }
+        if (amc)
+        {
             amc->reset();
             amc->update(*_node);
-	}
+        }
     }
 
 
@@ -220,7 +220,7 @@ struct LayerAttributesOperator : public ObjectOperator
 
                 int result = system(itr->c_str());
 
-	        osg::notify(osg::INFO)<<"system("<<*itr<<") result "<<result<<std::endl;
+                osg::notify(osg::INFO)<<"system("<<*itr<<") result "<<result<<std::endl;
 
                 double timeForRun = osg::Timer::instance()->delta_s(startTick, osg::Timer::instance()->tick());
 
@@ -266,29 +266,28 @@ public:
     FindOperatorsVisitor(ActiveOperators::OperatorList& operatorList, osg::NodeVisitor::TraversalMode tm):
         osg::NodeVisitor(tm),
         _operatorList(operatorList) {}
-		
-    void apply(osg::Node& node)    
-    {
-    	if (node.getStateSet()) process(node.getStateSet());
 
-	if (node.getUpdateCallback())
-	{
+    void apply(osg::Node& node)
+    {
+        if (node.getStateSet()) process(node.getStateSet());
+
+        if (node.getUpdateCallback())
+        {
             _operatorList.insert(new CallbackOperator(&node, node.getUpdateCallback()));
-	}
+        }
 
         LayerAttributes* la = dynamic_cast<LayerAttributes*>(node.getUserData());
         if (la)
         {
             _operatorList.insert(new LayerAttributesOperator(&node, la));
         }
-        
+
         traverse(node);
     }
 
     void apply(osg::Geode& node)    
     {
         apply((osg::Node&)node);
-        
         for(unsigned int i=0;i<node.getNumDrawables();++i)
         {
             osg::Drawable* drawable = node.getDrawable(i);
@@ -308,8 +307,8 @@ public:
                 _operatorList.insert(new ImageStreamOperator(imageStream));
             }
         }
-    }	
-    
+    }
+
     ActiveOperators::OperatorList& _operatorList;
 };
 
diff --git a/src/osgPlugins/p3d/SlideShowConstructor.h b/src/osgPlugins/p3d/SlideShowConstructor.h
index 4b4e5acd6..5d494a11a 100644
--- a/src/osgPlugins/p3d/SlideShowConstructor.h
+++ b/src/osgPlugins/p3d/SlideShowConstructor.h
@@ -114,7 +114,7 @@ public:
 
     struct PositionData
     {
-	PositionData():
+        PositionData():
             frame(SlideShowConstructor::SLIDE),
             position(0.0f,1.0f,0.0f),
             //position(0.5f,0.5f,0.0f),
@@ -122,7 +122,7 @@ public:
             rotate(0.0f,0.0f,0.0f,1.0f),
             rotation(0.0f,0.0f,1.0f,0.0f),
             absolute_path(false),
-	    inverse_path(false),
+            inverse_path(false),
             path_time_offset(0.0),
             path_time_multiplier(1.0f),
             path_loop_mode(osg::AnimationPath::NO_LOOPING),
@@ -155,23 +155,23 @@ public:
             return !animation_material_filename.empty() || !fade.empty();
         }
 
-	CoordinateFrame                         frame;
-	osg::Vec3                               position;
-	osg::Vec3                               scale;
-	osg::Vec4                               rotate;
-	osg::Vec4                               rotation;
+        CoordinateFrame                         frame;
+        osg::Vec3                               position;
+        osg::Vec3                               scale;
+        osg::Vec4                               rotate;
+        osg::Vec4                               rotation;
         std::string                             animation_name;
-	bool                                    absolute_path;
-	bool                                    inverse_path;
+        bool                                    absolute_path;
+        bool                                    inverse_path;
         double                                  path_time_offset;
         double                                  path_time_multiplier;
         osg::AnimationPath::LoopMode            path_loop_mode;
-	std::string                             path;
+        std::string                             path;
         double                                  animation_material_time_offset;
         double                                  animation_material_time_multiplier;
         ss3d::AnimationMaterial::LoopMode       animation_material_loop_mode;
-	std::string                             animation_material_filename;
-	std::string                             fade;
+        std::string                             animation_material_filename;
+        std::string                             fade;
     };
 
     struct ModelData
@@ -206,24 +206,24 @@ public:
 
     struct FontData
     {
-    	FontData():
-	    font("fonts/arial.ttf"),
-	    layout(osgText::Text::LEFT_TO_RIGHT),
-	    alignment(osgText::Text::LEFT_BASE_LINE),
-	    axisAlignment(osgText::Text::XZ_PLANE),
-	    characterSize(0.04f),
-	    maximumHeight(1.0f),
-	    maximumWidth(1.0f),
-	    color(1.0f,1.0f,1.0f,1.0f) {}
-    
-    	std::string 	    	    	font;
-	osgText::Text::Layout 	        layout;
-	osgText::Text::AlignmentType 	alignment;
-	osgText::Text::AxisAlignment 	axisAlignment;
-	float	    	    	    	characterSize;
-	float	    	    	    	maximumHeight;
-	float	    	    	    	maximumWidth;
-	osg::Vec4   	    	    	color;
+        FontData():
+            font("fonts/arial.ttf"),
+            layout(osgText::Text::LEFT_TO_RIGHT),
+            alignment(osgText::Text::LEFT_BASE_LINE),
+            axisAlignment(osgText::Text::XZ_PLANE),
+            characterSize(0.04f),
+            maximumHeight(1.0f),
+            maximumWidth(1.0f),
+            color(1.0f,1.0f,1.0f,1.0f) {}
+
+        std::string                     font;
+        osgText::Text::Layout           layout;
+        osgText::Text::AlignmentType    alignment;
+        osgText::Text::AxisAlignment    axisAlignment;
+        float                           characterSize;
+        float                           maximumHeight;
+        float                           maximumWidth;
+        osg::Vec4                       color;
     };