Separating JS from the html for GST.

common/static/js/graphical_slider_tool/main.js

+alert('Hello, world!');

lms/templates/graphical_slider_tool.html

@@ -14,9 +14,9 @@ ${gst_html}
 </div>
 
 
-<script type="text/javascript">
-//  wil be invoked for every GST section
-  $(document).ready(function() {
-    console.log('Another GST applet is loaded')
-  });
+<script type="text/javascript" src="/static/js/graphical_slider_tool/main.js">
+    // wil be invoked for every GST section
+    // $(document).ready(function() {
+    //     console.log('Another GST applet is loaded')
+    // });
 </script>