diff --git a/src/app/config.js b/src/app/config.js
index d363a3e..56cc3b9 100644
--- a/src/app/config.js
+++ b/src/app/config.js
@@ -1,8 +1,10 @@
 var visjs_options = {
   nodes: {
+    borderWidth: 3,
+    borderWidthSelected: 3,
     color: {
-        border: '#bbb',
-        background: '#fff',
+      border: '#fff',
+      background: '#fff',
       highlight: {
         border: '#fff',
         background: '#dd3'
@@ -48,5 +50,5 @@ var visjs_options = {
   }
 };
 
-var seed_url = 'http://www.scopus.com/results/results.url?sort=plf-f&src=s&st1=urea+permeation+immobilized&sid=B0FE19FE3CFF4CCF86DD857756E90636.FZg2ODcJC9ArCe8WOZPvA%3a1400&sot=b&sdt=b&sl=34&s=TITLE%28urea+permeation+immobilized%29&origin=searchbasic&txGid=B0FE19FE3CFF4CCF86DD857756E90636.FZg2ODcJC9ArCe8WOZPvA%3a140';
-
+var node_queued_color = jQuery.extend({},visjs_options.nodes.color);
+node_queued_color.background = '#da2d2f';
diff --git a/src/app/crawler.js b/src/app/crawler.js
index 1e8417b..38f5d5f 100644
--- a/src/app/crawler.js
+++ b/src/app/crawler.js
@@ -51,14 +51,22 @@ ScholarCrawler.prototype.process = function(url, parent_node)
 
 			if(crawler.node_ids.indexOf(child['id']) == -1)
 			{
-				crawler.node_ids.push(child['id']);
-				crawler.nodes.add(child);
-
-				if(child['depth'] < crawler.max_depth) {
+				if(child['depth'] < crawler.max_depth && child['n_citations'] > 0) {
 					crawler.push(child['citations_url'], child);
+					child.color = node_queued_color;
 				}
+
+				crawler.node_ids.push(child['id']);
+				crawler.nodes.add(child);
 			}
 		}
+
+		if(!(parent_node === null))
+		{
+			parent_node.color = visjs_options.nodes.color;
+			crawler.nodes.update(parent_node);
+		}
+
 	});
 };
 
diff --git a/src/app/scopus.js b/src/app/scopus.js
index bfd646f..624790f 100644
--- a/src/app/scopus.js
+++ b/src/app/scopus.js
@@ -1,6 +1,6 @@
 function ScopusParser() {};
 
-ScopusParser.prototype.parse = function(url, callback)
+ScopusParser.prototype._parse_results_page = function(url, callback)
 {
     var iframe = document.createElement("iframe");
     $(iframe).hide();
@@ -15,6 +15,7 @@ ScopusParser.prototype.parse = function(url, callback)
         if(select_pages.val() != 200) {
             select_pages.val(200);
             select_pages.change();
+            return;
         }
 
         $(ibody).find(".resultItemLists li").each(function(index, li)
@@ -56,3 +57,10 @@ ScopusParser.prototype.parse = function(url, callback)
         document.body.removeChild(iframe);
     });
 }
+
+ScopusParser.prototype.parse = function(url, callback)
+{
+    if(url === undefined) return;
+    //if(url.indexOf("/results/") > 0 || url.indexOf("/search/") > 0)
+    this._parse_results_page(url, callback);
+}