BIS-229 SP-419 : Fixed minor UI annoyances -- added UI polish.

SVN: 27908

deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/assets/css/openbis.css

 div#login {
   position: relative;
   top: 60px;
+}
+
+.nav li {
+	cursor: pointer;
+}
+
+.brand {
+	cursor: default;
 }
\ No newline at end of file

deep_sequencing_unit/source/core-plugins/ngs-sample-overview-graph/1/as/webapps/sample-graph/html/index.html

@@ -49,10 +49,10 @@
 	    <div class="navbar navbar-fixed-top">
 	      <div class="navbar-inner">
 	        <div class="container-fluid">
-	          <a class="brand" href="#">Sample Graph</a>
+	          <a class="brand">Sample Graph</a>
 		      <ul class="nav">
-		        <li class="active"><a id="bottom-up" href="#">Bottom Up</a></li>
-		        <li><a id="top-down" href="#">Top Down</a></li>
+		        <li class="active"><a id="bottom-up">Bottom Up</a></li>
+		        <li><a id="top-down">Top Down</a></li>
 		      </ul>
 	        </div>
 	      </div>