diff --git a/melpomene.js b/melpomene.js
index be4f664..d76678f 100644
--- a/melpomene.js
+++ b/melpomene.js
@@ -64,6 +64,63 @@ var MOUSEWHELL_WAIT = false;
 //   UTILITIES
 // =============
 
+// Dimensions utilites
+// -------------------
+
+function getPagesCount()
+{
+    return READER_PAGES.childElementCount;
+}
+
+function pageOriginalHeight(pageNumber)
+{
+    return READER_PAGES.children[pageNumber - 1].naturalHeight;
+}
+
+function pageOriginalWidth(pageNumber)
+{
+    return READER_PAGES.children[pageNumber - 1].naturalWidth;
+}
+
+function readerFrameRatio()
+{
+    return READER_CONTENT_FRAME.clientWidth / READER_CONTENT_FRAME.clientHeight;
+}
+
+function pageMaxHeight()
+{
+    let maxHeight = 0;
+
+    for (let i = 0; i < READER_PAGES.children.length; i += 1)
+    {
+        if(READER_PAGES.children[i].naturalHeight > maxHeight)
+        {
+            maxHeight = READER_PAGES.children[i].naturalHeight;
+        }
+    }
+
+    return maxHeight;
+}
+
+function pageVerticalOffset(pageNumber)
+{
+    return ( pageMaxHeight() - pageOriginalHeight(pageNumber) ) / 2;
+}
+
+function previousPagesWidth(pageNumber)
+{
+    // The width of all previous pages relative to the provided index
+
+    let totalWidth = 0;
+
+    for (let idx = 0; idx < pageNumber - 1; idx += 1)
+    {
+        totalWidth += READER_PAGES.children[idx].naturalWidth;
+    }
+
+    return totalWidth;
+}
+
 // Zooms utilites
 // --------------
 
@@ -167,121 +224,21 @@ function updateProgressBar()
     PROGRESS_BAR.style.width = getReadingProgressPercent() + "%";
 }
 
-// Dimensions utilites
-// -------------------
-
-function getPagesCount()
-{
-    return READER_PAGES.childElementCount;
-}
-
-function pageOriginalHeight(pageNumber)
-{
-    return READER_PAGES.children[pageNumber - 1].naturalHeight;
-}
-
-function pageOriginalWidth(pageNumber)
-{
-    return READER_PAGES.children[pageNumber - 1].naturalWidth;
-}
-
-function readerFrameRatio()
-{
-    return READER_CONTENT_FRAME.clientWidth / READER_CONTENT_FRAME.clientHeight;
-}
-
-function pageMaxHeight()
-{
-    let maxHeight = 0;
-
-    for (let i = 0; i < READER_PAGES.children.length; i += 1)
-    {
-        if(READER_PAGES.children[i].naturalHeight > maxHeight)
-        {
-            maxHeight = READER_PAGES.children[i].naturalHeight;
-        }
-    }
-
-    return maxHeight;
-}
-
-function pageVerticalOffset(pageNumber)
-{
-    return ( pageMaxHeight() - pageOriginalHeight(pageNumber) ) / 2;
-}
-
-function previousPagesWidth(pageNumber)
-{
-    // The width of all previous pages relative to the provided index
-
-    let totalWidth = 0;
-
-    for (let idx = 0; idx < pageNumber - 1; idx += 1)
-    {
-        totalWidth += READER_PAGES.children[idx].naturalWidth;
-    }
-
-    return totalWidth;
-}
-
 // =========
 //  ACTIONS
 // =========
 
-function initReader()
+function updateFocusByWidth(width)
 {
-    VERSION_DISPLAY.innerText = VERSION_DISPLAY.innerText.replace("Unknown version", MELPOMENE_VERSION);
-
-    loadZoomsFromImgTagsIfRequired();
-    moveReaderDisplayToZoom(0);
-
-    // Smoothly show pictures when they intersect with the viewport
-    const visibilityObserver = new IntersectionObserver(
-        (entries, _observer) =>
-        {
-            entries.forEach((entry) =>
-            {
-                if (entry.isIntersecting)
-                {
-                    entry.target.style.opacity = 1;
-                    entry.target.style.visibility = "visible";
-                }
-
-                else
-                {
-                    entry.target.style.opacity = 0;
-                    entry.target.style.visibility = "hidden";
-                }
-            });
-        },
-        { root: READER_CONTENT_FRAME, rootMargin: "-10px" }
-    );
-
-    for (let i = 0; i < READER_PAGES.children.length; i += 1)
-    {
-        const img = READER_PAGES.children[i];
-        visibilityObserver.observe(img);
-
-        PROGRESS_BAR_PAGES.appendChild(document.createElement("div"));
-    }
-
-    READER_PAGES.style.display = "flex";
-
-    setTimeout(
-        () => { READER_PAGES.hidden = false },
-        "300"
-    );
-
-    setTimeout(
-        () =>
-        {
-            HELP_CONTROLS.style.opacity = null;
-            HELP_CONTROLS.style.transform = null;
-        },
-        DELAY_BEFORE_HIDDING_CONTROLS
-    );
+    FOCUS_OVERLAY_WIDTH.style.width = `${width / READER_CONTENT_FRAME.clientWidth * 100}%`;
+    FOCUS_OVERLAY_HEIGHT.style.height = "100%";
 }
 
+function updateFocusByHeight(height)
+{
+    FOCUS_OVERLAY_WIDTH.style.width = "100%";
+    FOCUS_OVERLAY_HEIGHT.style.height = `${height / READER_CONTENT_FRAME.clientHeight * 100}%`;
+}
 
 function moveReaderDisplayToArea(pageNumber, oWidth, oHeight, oPosx, oPosy)
 {
@@ -400,18 +357,6 @@ function moveReaderDisplayToZoom(index)
     CURRENT_ZOOM = index;
 }
 
-function updateFocusByWidth(width)
-{
-    FOCUS_OVERLAY_WIDTH.style.width = `${width / READER_CONTENT_FRAME.clientWidth * 100}%`;
-    FOCUS_OVERLAY_HEIGHT.style.height = "100%";
-}
-
-function updateFocusByHeight(height)
-{
-    FOCUS_OVERLAY_WIDTH.style.width = "100%";
-    FOCUS_OVERLAY_HEIGHT.style.height = `${height / READER_CONTENT_FRAME.clientHeight * 100}%`;
-}
-
 function toggleViewMode()
 {
     if (IS_PAGE_MODE)
@@ -474,6 +419,60 @@ function moveReader(toNext)
     }
 }
 
+function initReader()
+{
+    VERSION_DISPLAY.innerText = VERSION_DISPLAY.innerText.replace("Unknown version", MELPOMENE_VERSION);
+
+    loadZoomsFromImgTagsIfRequired();
+    moveReaderDisplayToZoom(0);
+
+    // Smoothly show pictures when they intersect with the viewport
+    const visibilityObserver = new IntersectionObserver(
+        (entries, _observer) =>
+        {
+            entries.forEach((entry) =>
+            {
+                if (entry.isIntersecting)
+                {
+                    entry.target.style.opacity = 1;
+                    entry.target.style.visibility = "visible";
+                }
+
+                else
+                {
+                    entry.target.style.opacity = 0;
+                    entry.target.style.visibility = "hidden";
+                }
+            });
+        },
+        { root: READER_CONTENT_FRAME, rootMargin: "-10px" }
+    );
+
+    for (let i = 0; i < READER_PAGES.children.length; i += 1)
+    {
+        const img = READER_PAGES.children[i];
+        visibilityObserver.observe(img);
+
+        PROGRESS_BAR_PAGES.appendChild(document.createElement("div"));
+    }
+
+    READER_PAGES.style.display = "flex";
+
+    setTimeout(
+        () => { READER_PAGES.hidden = false },
+        "300"
+    );
+
+    setTimeout(
+        () =>
+        {
+            HELP_CONTROLS.style.opacity = null;
+            HELP_CONTROLS.style.transform = null;
+        },
+        DELAY_BEFORE_HIDDING_CONTROLS
+    );
+}
+
 
 // =============
 //   CALLBACKS