diff --git a/lib/raphael.draggable.js b/lib/raphael.draggable.js
index 2e185b8..1fc53c6 100644
--- a/lib/raphael.draggable.js
+++ b/lib/raphael.draggable.js
@@ -11,21 +11,21 @@
     
     paper.draggable.current = function(element) {
       if (element) {
-  	    currentDraggable = element;
-  	    return paper;
-  	  }
-  	  else {
-  	    return currentDraggable;
-  	  }
-  	};
-  	
-  	paper.draggable.clearCurrent = function() {
-  	  currentDraggable = null;  
-  	  return paper;  
-  	} 
-  	  
-  	overrideElements(paper);
-  	overrideSet(paper);
+        currentDraggable = element;
+        return paper;
+      }
+      else {
+        return currentDraggable;
+      }
+    };
+    
+    paper.draggable.clearCurrent = function() {
+      currentDraggable = null;  
+      return paper;  
+    } 
+      
+    overrideElements(paper);
+    overrideSet(paper);
     return paper;
   };
   
@@ -44,29 +44,29 @@
   /* Raphael element extensions */
   function overrideElements(paper) {
     var elementTypes = ['circle', 'rect', 'ellipse', 'image', 'text', 'path'];
-  	for(var i = 0; i < elementTypes.length; i++) {
-  		overrideElementFunc(paper, elementTypes[i]);
-  	}
+    for(var i = 0; i < elementTypes.length; i++) {
+      overrideElementFunc(paper, elementTypes[i]);
+    }
   }
   
   function overrideElementFunc(paper, elementType) {
-		var oldFunc = paper[elementType];
-		paper[elementType] = function() {
-			var element = oldFunc.apply(paper, arguments);
-			element.draggable = new DraggableExtension(element);
-			return element;
-		};
-	}
-		
-	/* Extension for objects that adds draggable functionality */
-	var DraggableExtension = function (element) {
-	  var paper = element.paper,
-	      lastX,
-	      lastY;
-	  
-	  this.element = element;
-	  this.enabled = false;
-	  
+    var oldFunc = paper[elementType];
+    paper[elementType] = function() {
+      var element = oldFunc.apply(paper, arguments);
+      element.draggable = new DraggableExtension(element);
+      return element;
+    };
+  }
+    
+  /* Extension for objects that adds draggable functionality */
+  var DraggableExtension = function (element) {
+    var paper = element.paper,
+        lastX,
+        lastY;
+    
+    this.element = element;
+    this.enabled = false;
+    
     element.mousedown(function(event) {
       if (paper.draggable.current() || !element.draggable.enabled)
         return;
@@ -75,7 +75,7 @@
     
       paper.draggable.current(element);
       lastX = event.clientX;
-  		lastY = event.clientY;
+      lastY = event.clientY;
     });
     
     element.mousemove(function(event) {
@@ -90,44 +90,44 @@
         lastY = event.clientY;
       }
     });
-	
-	  element.mouseup(stopDragging);
-	  element.mouseout(stopDragging);
-	  
-	  function stopDragging() {
-	    element.draggable.isDragging = false;
-	    paper.draggable.clearCurrent();
-	  }
-	};
-	
+  
+    element.mouseup(stopDragging);
+    element.mouseout(stopDragging);
+    
+    function stopDragging() {
+      element.draggable.isDragging = false;
+      paper.draggable.clearCurrent();
+    }
+  };
+  
   DraggableExtension.prototype = BaseFunctions;
   
   /* Raphael set extensions */
-	function overrideSet(paper) {
-	  var oldFunc = paper.set;
-	  paper.set = function() {
-	    var set = oldFunc.apply(paper, arguments);
-	    set.paper = paper;
-	    set.draggable = new DraggableSetExtension(set);
-	    
-	    overrideSetFunctions(set);
-	    return set;
-	  };
-	}
-	
-	function overrideSetFunctions(set) {
-	  var oldPushFunc = set.push;
-	  set.push = function(element) {
-	    oldPushFunc.apply(set, arguments);
-	    if (element.draggable) {
-	      element.draggable.parent = set;
-	      
-	      if (set.draggable.enabled) {
-	        element.draggable.enable();
-	      }
-	    }
-	  }
-	}
+  function overrideSet(paper) {
+    var oldFunc = paper.set;
+    paper.set = function() {
+      var set = oldFunc.apply(paper, arguments);
+      set.paper = paper;
+      set.draggable = new DraggableSetExtension(set);
+      
+      overrideSetFunctions(set);
+      return set;
+    };
+  }
+  
+  function overrideSetFunctions(set) {
+    var oldPushFunc = set.push;
+    set.push = function(element) {
+      oldPushFunc.apply(set, arguments);
+      if (element.draggable) {
+        element.draggable.parent = set;
+        
+        if (set.draggable.enabled) {
+          element.draggable.enable();
+        }
+      }
+    }
+  }
   
   DraggableSetExtension = function(set) {
     this.element = set;