small example change, fixed an issue in the gallery javascript

cnt/examples.txt

@@ -30,7 +30,7 @@ Links:
 
 Images:
 
-![this is an alt text](_img/tux.gif) 
+![this is an alt text](cnt/_photo/tux.gif) 
 
 # Syntax highlighting
 
@@ -81,4 +81,6 @@ HTML is a standard by W3C.
 # Footnotes
 
 Reference to a footnote. [^1] 
+Names work too. [^Ref] 
 [^1]: This is a footnote
+[^Ref]: An other one

gallery.js

@@ -37,7 +37,7 @@ function prevImg(){
     var parent = current_li.parentNode;
     var prev_li = prevByTag(parent,current_li,"LI");
     if( !prev_li ){
-        return;
+        return false;
     }
     var img = prev_li.getElementsByTagName("img")[0];
     var div = document.getElementById("gallery_container");
@@ -50,13 +50,14 @@ function prevImg(){
         }
     }
     current_li = prev_li;
+    return false;
 }
 
 function nextImg(){
     var parent = current_li.parentNode;
     var next_li = nextByTag(parent,current_li,"LI");
     if( !next_li ){
-        return;
+        return false;
     }
     var img = next_li.getElementsByTagName("img")[0];
     var div = document.getElementById("gallery_container");
@@ -69,6 +70,7 @@ function nextImg(){
         }
     }
     current_li = next_li;
+    return false;
 }
 
 function loadImg(src,target){