diff --git a/themes/fluid/layout/404.ejs b/themes/fluid/layout/404.ejs
index 174a1c5e..0f56d3fb 100644
--- a/themes/fluid/layout/404.ejs
+++ b/themes/fluid/layout/404.ejs
@@ -18,7 +18,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.page404.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 100)
diff --git a/themes/fluid/layout/about.ejs b/themes/fluid/layout/about.ejs
index 42574da6..daf5f45d 100644
--- a/themes/fluid/layout/about.ejs
+++ b/themes/fluid/layout/about.ejs
@@ -18,7 +18,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.about.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/archive.ejs b/themes/fluid/layout/archive.ejs
index e83e1b9b..7daff1a6 100644
--- a/themes/fluid/layout/archive.ejs
+++ b/themes/fluid/layout/archive.ejs
@@ -18,7 +18,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.archive.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/categories.ejs b/themes/fluid/layout/categories.ejs
index 8b5d04d7..c46a6371 100644
--- a/themes/fluid/layout/categories.ejs
+++ b/themes/fluid/layout/categories.ejs
@@ -20,7 +20,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.category.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/category.ejs b/themes/fluid/layout/category.ejs
index a9cfc4c6..3ef6e72c 100644
--- a/themes/fluid/layout/category.ejs
+++ b/themes/fluid/layout/category.ejs
@@ -20,7 +20,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.category.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/links.ejs b/themes/fluid/layout/links.ejs
index 7f3b6201..745498c6 100644
--- a/themes/fluid/layout/links.ejs
+++ b/themes/fluid/layout/links.ejs
@@ -19,7 +19,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.links.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/page.ejs b/themes/fluid/layout/page.ejs
index f1818d67..208d513b 100644
--- a/themes/fluid/layout/page.ejs
+++ b/themes/fluid/layout/page.ejs
@@ -18,7 +18,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.page.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/post.ejs b/themes/fluid/layout/post.ejs
index 527b30c1..4c1be3aa 100644
--- a/themes/fluid/layout/post.ejs
+++ b/themes/fluid/layout/post.ejs
@@ -15,7 +15,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.post.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/tag.ejs b/themes/fluid/layout/tag.ejs
index 2f46b64e..358a0e99 100644
--- a/themes/fluid/layout/tag.ejs
+++ b/themes/fluid/layout/tag.ejs
@@ -20,7 +20,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.tag.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)
diff --git a/themes/fluid/layout/tags.ejs b/themes/fluid/layout/tags.ejs
index 89b929bc..d84d2037 100644
--- a/themes/fluid/layout/tags.ejs
+++ b/themes/fluid/layout/tags.ejs
@@ -24,7 +24,7 @@ function hash(text) {
 }
 page.banner_group = page.banner_group || theme.tag.banner_group || theme.index.banner_group
 if (Array.isArray(page.banner_group) && page.banner_group.length) {
-    var index = hash(page.subtitle || page.title) % page.banner_group.length
+    var index = Math.abs(hash(page.subtitle || page.title)) % page.banner_group.length
     page.banner_img = page.banner_group[index].img || page.banner_img
     page.banner_text = page.banner_group[index].text || page.subtitle || page.title
     page.banner_img_height = parseFloat(page.banner_group[index].height || 50)