1 files changed, 28 insertions, 22 deletions

diff --git a/docs/navtree.js b/docs/navtree.js
index e6d31b0..9df45a7 100644
--- a/docs/navtree.js
+++ b/docs/navtree.js
@@ -1,6 +1,4 @@
 var navTreeSubIndices = new Array();
-var arrowDown = '▼';
-var arrowRight = '►';
 
 function getData(varName)
 {
@@ -73,17 +71,17 @@ function cachedLink()
 
 function getScript(scriptName,func,show)
 {
-  var head = document.getElementsByTagName("head")[0];
+  var head = document.getElementsByTagName("head")[0]; 
   var script = document.createElement('script');
   script.id = scriptName;
   script.type = 'text/javascript';
-  script.onload = func;
-  script.src = scriptName+'.js';
-  if ($.browser.msie && $.browser.version<=8) {
+  script.onload = func; 
+  script.src = scriptName+'.js'; 
+  if ($.browser.msie && $.browser.version<=8) { 
     // script.onload does not work with older versions of IE
     script.onreadystatechange = function() {
-      if (script.readyState=='complete' || script.readyState=='loaded') {
-        func(); if (show) showRoot();
+      if (script.readyState=='complete' || script.readyState=='loaded') { 
+        func(); if (show) showRoot(); 
       }
     }
   }
@@ -96,17 +94,18 @@ function createIndent(o,domNode,node,level)
   var n = node;
   while (n.parentNode) { level++; n=n.parentNode; }
   if (node.childrenData) {
-    var imgNode = document.createElement("span");
-    imgNode.className = 'arrow';
+    var imgNode = document.createElement("img");
     imgNode.style.paddingLeft=(16*level).toString()+'px';
-    imgNode.innerHTML=arrowRight;
+    imgNode.width  = 16;
+    imgNode.height = 22;
+    imgNode.border = 0;
     node.plus_img = imgNode;
     node.expandToggle = document.createElement("a");
     node.expandToggle.href = "javascript:void(0)";
     node.expandToggle.onclick = function() {
       if (node.expanded) {
         $(node.getChildrenUL()).slideUp("fast");
-        node.plus_img.innerHTML=arrowRight;
+        node.plus_img.src = node.relpath+"arrowright.png";
         node.expanded = false;
       } else {
         expandNode(o, node, false, false);
@@ -114,13 +113,15 @@ function createIndent(o,domNode,node,level)
     }
     node.expandToggle.appendChild(imgNode);
     domNode.appendChild(node.expandToggle);
+    imgNode.src = node.relpath+"arrowright.png";
   } else {
     var span = document.createElement("span");
-    span.className = 'arrow';
+    span.style.display = 'inline-block';
     span.style.width   = 16*(level+1)+'px';
+    span.style.height  = '22px';
     span.innerHTML = '&#160;';
     domNode.appendChild(span);
-  }
+  } 
 }
 
 var animationInProgress = false;
@@ -194,7 +195,7 @@ function newNode(o, po, text, link, childrenData, lastNode)
       var aname = '#'+link.split('#')[1];
       var srcPage = stripPath(pathName());
       var targetPage = stripPath(link.split('#')[0]);
-      a.href = srcPage!=targetPage ? url : "javascript:void(0)";
+      a.href = srcPage!=targetPage ? url : "javascript:void(0)"; 
       a.onclick = function(){
         storeLink(link);
         if (!$(a).parent().parent().hasClass('selected'))
@@ -212,7 +213,7 @@ function newNode(o, po, text, link, childrenData, lastNode)
       a.onclick = function() { storeLink(link); }
     }
   } else {
-    if (childrenData != null)
+    if (childrenData != null) 
     {
       a.className = "nolink";
       a.href = "javascript:void(0)";
@@ -261,13 +262,17 @@ function expandNode(o, node, imm, showRoot)
     } else {
       if (!node.childrenVisited) {
         getNode(o, node);
-      } if (imm || ($.browser.msie && $.browser.version>8)) {
+      } if (imm || ($.browser.msie && $.browser.version>8)) { 
         // somehow slideDown jumps to the start of tree for IE9 :-(
         $(node.getChildrenUL()).show();
       } else {
         $(node.getChildrenUL()).slideDown("fast");
       }
-      node.plus_img.innerHTML = arrowDown;
+      if (node.isLast) {
+        node.plus_img.src = node.relpath+"arrowdown.png";
+      } else {
+        node.plus_img.src = node.relpath+"arrowdown.png";
+      }
       node.expanded = true;
     }
   }
@@ -336,7 +341,7 @@ function showNode(o, node, index, hash)
         getNode(o, node);
       }
       $(node.getChildrenUL()).css({'display':'block'});
-      node.plus_img.innerHTML = arrowDown;
+      node.plus_img.src = node.relpath+"arrowdown.png";
       node.expanded = true;
       var n = node.children[o.breadcrumbs[index]];
       if (index+1<o.breadcrumbs.length) {
@@ -473,9 +478,10 @@ function initNavTree(toroot,relpath)
   o.node.relpath = relpath;
   o.node.expanded = false;
   o.node.isLast = true;
-  o.node.plus_img = document.createElement("span");
-  o.node.plus_img.className = 'arrow';
-  o.node.plus_img.innerHTML = arrowRight;
+  o.node.plus_img = document.createElement("img");
+  o.node.plus_img.src = relpath+"arrowright.png";
+  o.node.plus_img.width = 16;
+  o.node.plus_img.height = 22;
 
   if (localStorageSupported()) {
     var navSync = $('#nav-sync');