--- a/src/main/webapp/resources/js/general.js	Thu Feb 04 11:30:46 2016 +0100
+++ b/src/main/webapp/resources/js/general.js	Tue Feb 16 15:09:40 2016 +0100
@@ -6,6 +6,8 @@
 		bookName, 
 		userId, extractionInterfaceUrl){
 	
+	// the input parameters contain fileId, since a branch means a text/many version of the text, of a section
+		
 	var form = document.createElement("form");
 	form.setAttribute("method", "post");
 	form.setAttribute("action", extractionInterfaceUrl + "/Extractapp/TaggingText");  // hand to controller
@@ -57,7 +59,9 @@
 	   }
 }
 
-function sectionInExtractionInterface(sectionId, sectionName, bookId, bookName, userId, extractionInterfaceUrl){
+function sectionInExtractionInterface(sectionId, sectionName, bookId, bookName, topicId, userId, extractionInterfaceUrl){
+	
+	// the input parameters contain no fileId, since it's from searching result and haven't assigned topic Or saved
 	
 	var form = document.createElement("form");
 	form.setAttribute("method", "post");
@@ -89,6 +93,11 @@
 	hiddenField6.setAttribute("value", bookName);
 	form.appendChild(hiddenField6);	
 	
+	var hiddenField7 = document.createElement("input");      
+	hiddenField7.setAttribute("name", "topic");
+	hiddenField7.setAttribute("value", topicId);
+	form.appendChild(hiddenField7);	
+	
 	if(navigator.userAgent.toLowerCase().indexOf('firefox') > -1) {
 	       document.body.appendChild(form);
 	       form.submit();