helpt tip for chemical panel

frontend-js/src/main/js/gui/leftPanel/ChemicalPanel.js

@@ -10,9 +10,15 @@ var PanelControlElementType = require('../PanelControlElementType');
 
 function ChemicalPanel(params) {
   params.panelName = "chemical";
+  params.helpTip = '<p>source: Comparative Toxicogenomics Database <a target="_ctd" href="http://ctdbase.org/">ctdbase.org</a></p>'
+      + '<p>use only the full name of chemicals according to <a target="_ctd_chemicals" href="http://ctdbase.org/voc.go?type=chem/"> ctdbase/chem</a> for search</p>'
+      + '<p>only curated associations between genes and chemicals with direct evidence to '
+      + 'Parkinson Disease (<a href="http://bioportal.bioontology.org/ontologies/1351?p=terms&conceptid=D010300" target="_blank">D010300</a>) are displayed</p>'
+      + '<p>separate multiple search by semicolon';
+
   AbstractDbPanel.call(this, params);
 
-  if (params.disease===undefined) {
+  if (params.disease === undefined) {
     this.disablePanel("DISEASE NOT DEFINED FOR PROJECT. PLEASE, DEFINE IT IN THE ADMIN SECTION.");
   }
 }
@@ -29,7 +35,8 @@ ChemicalPanel.prototype.createPreamble = function(chemical) {
     result.appendChild(self.createParamLine("Description: ", chemical.getDescription()));
     result.appendChild(self.createArrayParamLine("Synonyms: ", chemical.getSynonyms()));
     result.appendChild(self.createParamLine("Direct Evidence: ", chemical.getDirectEvidence()));
-    result.appendChild(self.createAnnotations("Directe Evidence Publications: ", chemical.getDirectEvidenceReferences()));
+    result.appendChild(self
+        .createAnnotations("Directe Evidence Publications: ", chemical.getDirectEvidenceReferences()));
     result.appendChild(self.createAnnotations("Sources: ", chemical.getReferences()));
     result.appendChild(self.createNewLine());
   }
@@ -44,13 +51,13 @@ ChemicalPanel.prototype.createTableElement = function(target, icon) {
 ChemicalPanel.prototype.searchByQuery = function() {
   var self = this;
   var query = self.getControlElement(PanelControlElementType.SEARCH_INPUT).value;
-  
+
   return self.getOverlayDb().searchByQuery(query);
 };
 
 ChemicalPanel.prototype.init = function() {
   var query = ServerConnector.getSessionData().getChemicalQuery();
-  if (query!==undefined) {
+  if (query !== undefined) {
     return this.getOverlayDb().searchByEncodedQuery(query);
   } else {
     return Promise.resolve();