Add jqplot for graphing

phpgwapi/js/jquery/jqplot/examples/nav.inc

@@ -0,0 +1,35 @@
+<div class="nav">
+  <?php
+    $dh  = opendir('./');
+    while (false !== ($filename = readdir($dh))) {
+        if (preg_match('/^[a-z0-9]+\.html$/i', $filename)) {
+          $files[] = $filename;
+        }
+    }
+    $fcount = count($files);
+    $parts = explode("/", $_SERVER['SCRIPT_NAME']);
+    $curfile = end($parts);
+    $prevfile = '';
+    $nextfile = '';
+    // echo $fcount, $curfile;
+    // print_r($files);
+    
+    for ($i=0; $i<$fcount; $i++) {
+      if ($curfile == $files[$i]) {
+        $prevfile = $files[$i-1];
+        $nextfile = $files[$i+1];
+        if ($i == 0) {
+          $prevfile = $files[$fcount-1];
+          $nextfile = $files[1];
+        }
+        elseif ($i == $fcount-1) {
+          $prevfile = $files[$i-1];
+          $nextfile = $files[0];
+        }
+      }  
+    }
+    
+    echo '<a href="'.$prevfile.'">Previous</a> <a href="./">Examples</a> <a href="'.$nextfile.'">Next</a>';
+    
+  ?>
+</div>