change src to 'data-original', adding binding function to document ready

html/includes/functions.inc.php

@@ -353,7 +353,7 @@ function generate_graph_tag($args)
     $urlargs[] = $key."=".urlencode($arg);
   }
 
-  return '<img class="lazy" width="'.$w.'" height="'.$h.'" src="graph.php?' . implode('&amp;',$urlargs).'" border="0" />';
+  return '<img class="lazy" width="'.$w.'" height="'.$h.'" data-original="graph.php?' . implode('&amp;',$urlargs).'" border="0" />';
 }
 
 function generate_graph_js_state($args) {

html/index.php

@@ -320,6 +320,10 @@ if ($no_refresh !== TRUE && $config['page_refresh'] != 0) {
     echo('<script type="text/javascript">
         $(document).ready(function() {
 
+           $("img.lazy").lazyload({
+               effect: "fadeIn"
+           });
+
            $("#countdown_timer_status").html("<i class=\"fa fa-pause fa-fw\"></i> Pause");
            var Countdown = {
                sec: '. $config['page_refresh'] .',