diff --git a/scripts/image-app.js b/scripts/image-app.js
index 7305398..b445dce 100644
--- a/scripts/image-app.js
+++ b/scripts/image-app.js
@@ -15,9 +15,9 @@
         canvas.height = img.height;
         ctx.drawImage(img,0,0);
         original = ctx.getImageData(0, 0, canvas.width, canvas.height);
-      }
+      };
       img.src = event.target.result;
-    }
+    };
     reader.readAsDataURL(e.target.files[0]);
   }
 
@@ -27,11 +27,11 @@
     var buttons = document.querySelectorAll('button');
     for (var i = 0; i < buttons.length; i++) {
       if (buttons[i].hasAttribute('disabled')) {
-        buttons[i].removeAttribute('disabled')
+        buttons[i].removeAttribute('disabled');
       } else {
         buttons[i].setAttribute('disabled', null);
       }
-    };
+    }
   }
 
   function manipulateImage(type) {
@@ -57,7 +57,7 @@
     }
     toggleButtonsAbledness();
     return ctx.putImageData(imageData, 0, 0);
-  };
+  }
 
   function revertImage() {
     return ctx.putImageData(original, 0, 0);
@@ -78,4 +78,4 @@
   document.querySelector('#revert').onclick = function() {
     revertImage();
   };
-})();
\ No newline at end of file
+})();
diff --git a/scripts/imageManips.js b/scripts/imageManips.js
index ff8f2c3..9ef885d 100644
--- a/scripts/imageManips.js
+++ b/scripts/imageManips.js
@@ -1,7 +1,7 @@
  // Image manipulation logic from github.com/jwill/psychic-lana
 
 function manipulate(type, r, g, b, a) {
-  
+
   var func = function() {};
 
   function makePixelInverted(r, g, b, a) {
@@ -9,7 +9,7 @@ function manipulate(type, r, g, b, a) {
     g = 255 - g;
     b = 255 - b;
     return [r, g, b, a];
-  };
+  }
 
   function makePixelChroma(r, g, b, a) {
     var max;
@@ -19,7 +19,7 @@ function manipulate(type, r, g, b, a) {
     } else {
       return [r, g, b, a];
     }
-  };
+  }
 
   function makePixelGreyScale(r, g, b, a) {
     var y;
@@ -28,7 +28,7 @@ function manipulate(type, r, g, b, a) {
     g = y;
     b = y;
     return [r, g, b, a];
-  };
+  }
 
   function makePixelVibrant(r, g, b, a) {
     var amt, avg, bs, gs, mx, rs;
@@ -39,7 +39,7 @@ function manipulate(type, r, g, b, a) {
     gs = g + (amt * (mx - g));
     bs = b + (amt * (mx - b));
     return [rs, gs, bs, a];
-  };
+  }
 
   switch (type) {
     case "invert":
@@ -60,4 +60,4 @@ function manipulate(type, r, g, b, a) {
   }
 
   return func(r, g, b, a);
-}
\ No newline at end of file
+}
diff --git a/scripts/time-animator.js b/scripts/time-animator.js
index 13c8084..980a4c6 100644
--- a/scripts/time-animator.js
+++ b/scripts/time-animator.js
@@ -35,7 +35,7 @@
       "Thursday",
       "Friday",
       "Saturday"
-    ]
+    ];
 
     var months = [
       "January",
@@ -50,7 +50,7 @@
       "October",
       "November",
       "December"
-    ]
+    ];
 
     var now = new Date(Date.now());
 
@@ -75,7 +75,7 @@
 
     var dateString = days[day] + ", " + date + " " + months[month] + " " + parseInt(1900 + year);
     var timeString = hours + ":" + mins + ":" + secs + ":" + ms;
-    
+
     // calc the time diff between frames, starting with the second frame
     if (lastTime > 0) {
       frameTimeDiff = now - lastTime;
@@ -112,5 +112,5 @@
     // save the data about this frame for future comparison
     lastTime = now;
     lastDiff = frameTimeDiff;
-  };
-})();
\ No newline at end of file
+  }
+})();
diff --git a/scripts/worker.js b/scripts/worker.js
index 4f7985b..4622d78 100644
--- a/scripts/worker.js
+++ b/scripts/worker.js
@@ -18,12 +18,11 @@ this.onmessage = function(e) {
       imageData.data[i * 4 + 3] = pixel[3];
     }
     postMessage(imageData);
-  } catch (e) {
+  } catch (ex) {
     function ManipulationException(message) {
       this.name = "ManipulationException";
       this.message = message;
-    };
+    }
     throw new ManipulationException('Image manipulation error');
-    postMessage(undefined);
   }
-}
\ No newline at end of file
+};