diff --git a/index.html b/index.html
index c7ff875..177cfe9 100644
--- a/index.html
+++ b/index.html
@@ -346,13 +346,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				iframe1.src = url1.replace(/Page_\d+/, "Page_" + page1);
 				iframe2.src = url2.replace(/Page_\d+/, "Page_" + page2);
@@ -365,13 +365,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				iframe1.src = url1.replace(/page\d+/, "page" + page1);
 				iframe2.src = url2.replace(/page\d+/, "page" + page2);
@@ -383,13 +383,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				img1.src = url1.replace(/page\d+/, "page" + page1);
 				img2.src = url2.replace(/page\d+/, "page" + page2);
@@ -402,13 +402,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				img1.src = url1.replace(/\d+(?=\.jpg)/, page1);
 				img2.src = url2.replace(/\d+(?=\.jpg)/, page2);
@@ -423,13 +423,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				img1.src = url1.replace(/\d+(?=\.gif)/, page1);
 				img2.src = url2.replace(/\d+(?=\.gif)/, page2);
@@ -444,13 +444,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				iframe1.src = url1.replace(/(\/page)\d{3}(\.xhtml\?interface=postMessage)/, "$1" + ("000" + page1).slice(-3) + "$2");
 				iframe2.src = url2.replace(/(\/page)\d{3}(\.xhtml\?interface=postMessage)/, "$1" + ("000" + page2).slice(-3) + "$2");
@@ -464,13 +464,13 @@
 				page2 += delta;
 				if (page1 < 1) {
 					page1 = 1;
-				} else if (page1 > 600) {
-					page1 = 600;
+				} else if (page1 > 700) {
+					page1 = 700;
 				}
 				if (page2 < 1) {
 					page2 = 2;
-				} else if (page2 > 600) {
-					page2 = 600;
+				} else if (page2 > 700) {
+					page2 = 700;
 				}
 				img1.src = url1.replace(/\d+(?=\.jpg)/, page1);
 				img2.src = url2.replace(/\d+(?=\.jpg)/, page2);