Fix to specify more than one index of metrics separated with comma as th...

README.md

@@ -10,7 +10,7 @@ This project should still be considered beta software. There are known performan
 
 Dusk is designed to be simple and purpose-driven. Any string passed to the `/metrics/` endpoint (including wildcards) will be used as the search context. All metrics found by the Graphite server will be returned and rendered live.
 
-For example, loading `/metrics/collectd.*.load.load.shortterm` will render the `shortterm` metric for all servers in your Graphite instance. Adding the `index` param to your URL defines which (zero-indexed) node should be used as the metric alias.
+For example, loading `/metrics/collectd.*.load.load.shortterm` will render the `shortterm` metric for all servers in your Graphite instance. Adding the `index` param to your URL defines which (zero-indexed) node should be used as the metric alias. (You can also specify multiple nodes with comma like `?index=1,3,5`.)
 
 ![usage](https://github.com/obfuscurity/dusk/raw/master/lib/dusk/public/img/screenshot-usage.png)
 

lib/dusk/public/js/dusk.js

@@ -38,8 +38,14 @@ var Dusk = function(target) {
       var metrics = []
       for (var i=0; i<results.length; i++) {
         var metric = myGraphite.metric(results[i])
-        var index = (myNameIndex === '') ? 1 : myNameIndex
-        metric.alias(results[i].split('.')[index])
+        var index = (myNameIndex === '') ? '1' : myNameIndex
+        var alias = '';
+        var resultsArr = results[i].split('.');
+        index.split(',').forEach(function(ind) {
+            if(alias.length > 0) { alias += '.'; }
+            alias += resultsArr[parseInt(ind,10)];
+        });
+        metric.alias(alias);
         metrics.push(metric)
       }
       d3.select('div.wrapper').selectAll('.horizon')