Some code cleanup and variable name fix

byob.js

@@ -769,7 +769,7 @@ CustomCommandBlockMorph.prototype.userMenu = function () {
                 var ide = this.parentThatIsA(IDE_Morph);
                 ide.saveCanvasAs(
                     this.topBlock().scriptPic(),
-                    this.projectName + ' ' + localize('script pic'),
+                    ide.projectName + ' ' + localize('script pic'),
                     true // request opening a new window
                 );
             },

gui.js

@@ -3006,11 +3006,12 @@ IDE_Morph.prototype.rawSaveProject = function (name) {
     }
 };
 
+
+IDE_Morph.prototype.exportProject = function (name, newWindow, plain) {
     // Export project XML, newWindow opens a new tab if true
     // This is used both for "Save to Disk" and "Export project..."
-IDE_Morph.prototype.exportProject = function (name, newWindow, plain) {
     var menu, str, dataPrefix;
-    // saveXMLAs(x, x, true) tries to open a new tab.
+
     if (name) {
         this.setProjectName(name);
         dataPrefix = 'data:text/' + plain ? 'plain,' : 'xml,';
@@ -3029,7 +3030,7 @@ IDE_Morph.prototype.exportProject = function (name, newWindow, plain) {
             menu = this.showMessage('Exporting');
             str = this.serializer.serialize(this.stage)
             this.setURL('#open:' + dataPrefix + encodeURIComponent(str));
-            this.saveXMLAs(str, name, true);
+            this.saveXMLAs(str, name, newWindow);
             menu.destroy();
             this.showMessage('Exported!', 1);
         }