--- a/cropper.js	Fri Nov 27 14:20:38 2009 -0500
+++ b/cropper.js	Fri Nov 27 14:47:52 2009 -0500
@@ -39,32 +39,32 @@
   observe: function observe(subject, topic) {
     var selection = this.selectableImage.getSelection();
     var ctx = this.canvas.getContext("2d");
-    ctx.drawImage(
-      this.selectableImage.img,
-      selection.left,
-      selection.top,
-      selection.width,
-      selection.height,
-      0,
-      0,
-      this.size,
-      this.size
-    );
+    if (selection.width == 0 || selection.height == 0) {
+      ctx.fillStyle = "rgb(255,255,255)";
+      ctx.fillRect(0, 0, this.size, this.size);
+    } else
+      ctx.drawImage(this.selectableImage.img,
+                    selection.left,
+                    selection.top,
+                    selection.width,
+                    selection.height,
+                    0,
+                    0,
+                    this.size,
+                    this.size);
   }
 };
 
 function SelectableImage(url, canvas) {
   var img = new Image();
 
+  this._isLoading = true;
   img._parent = this;
   img.onload = this.onImgLoad;
   img.src = url;
 
   canvas._parent = this;
 
-  $(canvas).mousedown(this.onDragStart);
-  $(canvas).mouseup(this.onDragStop);
-
   this.isDirty = false;
   this.canvas = canvas;
   this.img = img;
@@ -79,9 +79,13 @@
   onImgLoad: function onImgLoad(evt) {
     var self = evt.target._parent;
 
+    self._isLoading = false;
     self.canvas.width = self.img.width;
     self.canvas.height = self.img.height;
+    $(self.canvas).mousedown(self.onDragStart);
+    $(self.canvas).mouseup(self.onDragStop);
     self._markDirty();
+    self._observers.notify("selection-changed");
   },
 
   onDragStart: function onDragStart(evt) {
@@ -132,8 +136,10 @@
 
   setSelection: function setSelection(selection) {
     this._selection = selection;
-    this._markDirty();
-    this._observers.notify("selection-changed");
+    if (!this._isLoading) {
+      this._markDirty();
+      this._observers.notify("selection-changed");
+    }
   },
 
   getSelection: function getSelection() {