Improvement usability Guided Tour

Change-Id: I8fd108451abf645c3f4baf734cb17103a80e4e38
diff --git a/dev/js/spec/tourSpec.js b/dev/js/spec/tourSpec.js
index afba72a..3cd1a5b 100644
--- a/dev/js/spec/tourSpec.js
+++ b/dev/js/spec/tourSpec.js
@@ -469,14 +469,14 @@
        expect(document.querySelector(".introjs-tooltiptext").textContent).toEqual(searchTour.testIntros[i-1]);
 
        switch(i){
-       case 5:
+       case 4:
        expect(intrkorap.querySelector('#hint')).not.toBeNull(); 
        expect(KorAP.Hint).not.toBeNull();
        expect(KorAP.Hint.active().dontHide).toBe(true); 
        expect(KorAP.Hint._active).not.toBeNull();
        break;
        
-       case 6:
+       case 5:
        expect(KorAP.Hint._active).toBeNull();
        break;
                      
@@ -513,7 +513,7 @@
      tourAbort.start(); 
      expect(KorAP.Hint._active).toBeNull();
      expect(document.querySelector(".introjs-skipbutton")).not.toBeNull();
-     tourAbort.goToStepNumber(5);
+     tourAbort.goToStepNumber(4);
      expect(KorAP.Hint._active).not.toBeNull()
      expect(KorAP.Hint.active().dontHide).toBe(true);
      tourAbort.exit();
diff --git a/dev/js/src/loc/de.js b/dev/js/src/loc/de.js
index b01769a..d42af7f 100644
--- a/dev/js/src/loc/de.js
+++ b/dev/js/src/loc/de.js
@@ -46,9 +46,9 @@
   
   //Guided Tour: Steps
   loc.TOUR_welc = "<span class = 'tgreeting'>Willkommen zur KorAP Tour! </span> " +
-  "<p class='pfirstStep'> Hier zeigen wir Ihnen einige wichtige Funktionalitäten von KorAP. </p>"; 
-  loc.TOUR_sear1 = "Geben Sie die Suchanfrage hier ein.";
-  loc.TOUR_sear2 = "Zum Beispiel die Suche nach '"+ loc.TOUR_Qexample +  "'.";
+  "<p class='pfirstStep'> Hier zeigen wir Ihnen einige wichtige Funktionalitäten von KorAP. " +
+  "Wir führen Sie Schritt bei Schritt anhand eines Beispiels durch die Anwendung. </p>";  
+  loc.TOUR_sear1 = "Eingabe der Suchanfrage, zum Beispiel die Suche nach '" + loc.TOUR_Qexample + "'." ;
   loc.TOUR_searAnnot ="Für die Suche nach Annotationen steht der Annotationsassistent zur Verfügung.";
   loc.TOUR_annotAss = "Der Annotationsassistent erleichert die Formulierung von Suchanfragen mit Annotationen.";
   loc.TOUR_vccho1 = "Öffnen des Korpusassistenten";
diff --git a/dev/js/src/tour/tours.js b/dev/js/src/tour/tours.js
index fcccdf7..808165b 100644
--- a/dev/js/src/tour/tours.js
+++ b/dev/js/src/tour/tours.js
@@ -19,9 +19,9 @@
   
   //localization guided tour gTstartSearch
   loc.TOUR_welc = loc.TOUR_welc || "<span class='tgreeting'> Welcome to our guided tour!</span>" +
-  		                           "<p class='pfirstStep'> This tour should give you a quick introduction to KorAP. </p>"; 
-  loc.TOUR_sear1 = loc.TOUR_sear1 || "Enter your search enquiry here.";
-  loc.TOUR_sear2 = loc.TOUR_sear2 || "For example the search for '" +  loc.TOUR_Qexample + "'.";
+  		                           "<p class='pfirstStep'> This tour should give you a quick introduction to KorAP. " +
+  		                           "We lead you step by step through an example. </p>"; 
+  loc.TOUR_sear1 = loc.TOUR_sear1 || "Input field for the query, for example the search for '" +  loc.TOUR_Qexample + "'.";
   loc.TOUR_searAnnot = loc.TOUR_searAnnot || "Annotation helper";
   loc.TOUR_annotAss =  loc.TOUR_annotAss || "The assistant displays the annotations of the different layers and helps to formulate queries.";
   loc.TOUR_vccho1 = loc.TOUR_vccho1 || "Choose corpus";  
@@ -46,12 +46,22 @@
   loc.TOUR_tourdone = loc.TOUR_tourdone || "Have fun with KorAP!";
   
   //localization of button labels
-  let labelOptions = {
+  let labelOpts= {
       'skipLabel': loc.TOUR_lskip, 
       'prevLabel': loc.TOUR_lprev,
       'nextLabel': loc.TOUR_lnext,
       'doneLabel': loc.TOUR_ldone,
-      'showStepNumbers': false,
+      'showStepNumbers': false
+  };
+  
+  //usability options of tours
+  let usabilityOpts ={
+      'showBullets': false,
+      'overlayOpacity': 0.7,
+      'exitOnOverlayClick': false,
+      'disableInteraction': true,      
+      'hideNext': true,
+      'hidePrev': true
   };
   
   var doe = document;
@@ -63,16 +73,15 @@
      */
     gTstartSearch:function(elparam){
       let intro = introClass();
-      intro.setOptions(labelOptions);
+      intro.setOptions(labelOpts);
       intro.setOption('tooltipClass', 'gTstartSearch');
-      intro.setOption('hideNext', true);
-      intro.setOption('hidePrev', true);
       /*
        * Sets button labels for the last step of the tour
        * Because Kalamar is a multipage webapplication, this tours starts by
        * completion the gTshowResults Tour. Therefore the label of the done button changed.
         */
       intro.setOption('doneLabel', loc.TOUR_ldoneSearch );
+      intro.setOptions(usabilityOpts);
       
       //for testing purposes
       if(elparam){
@@ -94,11 +103,6 @@
           position: 'bottom'
         },
         {
-          element: '#q-field',
-          intro: loc.TOUR_sear2,
-          position: 'bottom'
-        },
-        {
           element: '#hint',
           intro: loc.TOUR_searAnnot,
           position: 'bottom'
@@ -163,9 +167,7 @@
            * #268 is not merged at the time beeing: 
            * introJs.currentStep() merge requested https://github.com/usablica/intro.js/pull/268/files
            */
-          if(this._currentStep == 2){ 
             targetedElement.value = loc.TOUR_Qexample;
-          }   
           break;
         case "vc-view":  
           vchoo = doe.querySelector("#vc-choose");
@@ -178,18 +180,18 @@
             /*
              * Intro.js caches elements at the beginning, so element and position has to be set again.
              */
-            intro._introItems[7].element = doe.querySelector('.statistic');
-            intro._introItems[7].position = "left";
+            intro._introItems[6].element = doe.querySelector('.statistic');
+            intro._introItems[6].position = "left";
           }   
           break;   
           
         } 
         
-        if(this._currentStep == 8){
+        if(this._currentStep == 7){
           let statbut = doe.querySelector('.statistic');
           statbut.click();
-          intro._introItems[8].element = doe.querySelector(".stattable");
-          intro._introItems[8].position = "bottom";
+          intro._introItems[7].element = doe.querySelector(".stattable");
+          intro._introItems[7].position = "bottom";
         }
       });
 
@@ -203,18 +205,18 @@
         var that = this; 
         switch(this._currentStep){
         //hides Hint if back button is pressed 
-        case 3:   
+        case 2:   
           if(KorAP.Hint.active()){
           KorAP.Hint.unshow(); 
           }
           break;
-        case 4:
+        case 3:
           KorAP.Hint.show(false);
           KorAP.Hint.active().dontHide = true;
-          intro._introItems[4].element = doe.querySelector(".menu.roll.hint");
-          intro._introItems[4].position = doe.querySelector("bottom");
+          intro._introItems[3].element = doe.querySelector(".menu.roll.hint");
+          intro._introItems[3].position = doe.querySelector("bottom");
           break;
-        case 5: 
+        case 4: 
           KorAP.Hint.unshow();      
           break;
         }
@@ -234,8 +236,7 @@
     gTshowResults: function(elparam){     
     
       let tourR = introClass();
-      tourR.setOption('hideNext', true);
-      tourR.setOption('hidePrev', true);
+      tourR.setOptions(usabilityOpts);
       
       //for testing purposes
       if(elparam){
@@ -303,7 +304,7 @@
         ]
       
         tourR.setOptions({steps:StepsSR});
-        tourR.setOptions(labelOptions);
+        tourR.setOptions(labelOpts);
      
         tourR.onbeforeexit(function(){
           KorAP.session.set("tour", false);