diff --git a/all.html b/all.html
index 1ded3f6..f728557 100644
--- a/all.html
+++ b/all.html
@@ -37,7 +37,7 @@ <h2>Get the data from RescueTime</h2>
                 <label><a href="https://www.rescuetime.com/anapi/manage" target="_blank">Choose your API Key</a>
                 </label>
                 <input type="text" class="form-control" id="api_key" placeholder="Enter API key"
-                       value="B63ZDoTfhcZit7t76wEuSKnKrTOe_IO7BF3OgmRo">
+                       value="">
 
                 <div class="input-daterange input-group" id="datepicker">
                     <span class="input-group-addon">from</span>
@@ -86,19 +86,29 @@ <h3>Efficency</h3>
     </div>
     <div class="row chart">
         <div class="col-sm-12">
+            <blockquote class="col-sm-offset-1 col-sm-10">
+                <p>This chart shows your productivity during the select range. Productivity is calculated with this
+                    formula: <br>(Time*RescueTime's Productivity Score)/3600. <br>This means that if you do 60 minutes with
+                    100 as Productivity Score your productivity will be 100 too, but if you do only 30 minutes with 100
+                    Productivity Score your productivity will be 50! <br> You can think at blue line as the thing you got done.
+                    <br> If show dates is checked instead of points you will be able to see date and time for individual
+                    dots but the trend line may not be available.</p>
+            </blockquote>
             <!--<h2>Productivity for the selected range</h2>-->
 
             <div class="input-group">
 
                 <span class="input-group-addon">Trendline degree (linear-50)</span>
                 <input type="number" id="numberSpinner" min="1" max="50" class="form-control"
-                       value="20"/> <span class="input-group-btn" onClick="updateProdTrend()">
+                       value="20"/> <span class="input-group-btn" onClick="updateProd()">
         <button class="btn btn-default" type="button">Go!</button>
       </span>
 
             </div>
             <label class="checkbox-inline"><input type="checkbox" id="showDates">Show dates on x-axis (no trend line
                 available)</label>
+            <br>
+            <br>
 
             <div id="efficiency_graph"></div>
 
@@ -106,8 +116,14 @@ <h3>Efficency</h3>
     </div>
     <div class="row chart">
         <div class="col-sm-12">
+            <blockquote class="col-sm-offset-1 col-sm-10">
+                <p>This chart shows your average productivity during a day. To calculate the points the productivity as
+                    been grouped by hour and then averaged. For the productivity is used the same formula as above.</p>
+            </blockquote>
+            <br>
             <!--<h2>Your average pro through the day</h2>-->
 
+
             <div id="avg_hour_graph"></div>
         </div>
     </div>
@@ -115,7 +131,12 @@ <h3>Efficency</h3>
     <div class="row chart">
         <div class="col-sm-12">
             <!--<h2>Total minutes for hour</h2>-->
-
+            <blockquote class="col-sm-offset-1 col-sm-10">
+                <p>This chart shows your average productivity and the total time spent for each hour in the selected period. If there is a big gap between the line and the chart this means that for that specific point your RescueTime's productivity pulse where high</p>
+            </blockquote>
+            <br>
+            <br>
+            <br>
             <div id="combo_hour_graph"></div>
         </div>
     </div>
@@ -123,6 +144,11 @@ <h3>Efficency</h3>
 
     <div class="row chart">
         <div class="col-sm-12">
+            <br>
+            <blockquote class="col-sm-offset-1 col-sm-10">
+                <p>These charts are the same as the two above but are gruped by days of week instead of by hour</p>
+            </blockquote>
+
             <!--<h2>Your average pro through the day</h2>-->
 
             <div id="avg_day_graph"></div>
@@ -141,6 +167,9 @@ <h3>Efficency</h3>
     <div class="row chart">
         <div class="col-sm-12">
             <h2>Top 50 activities </h2>
+            <blockquote class="col-sm-offset-1 col-sm-10">
+                <p>This chart simply show your top activities for the select range bar's color is based on RescueTime's colors.</p>
+            </blockquote>
 
             <h2 id="act-display"></h2>
 
diff --git a/app.js b/app.js
index 1ddb8ba..ebc9a4c 100644
--- a/app.js
+++ b/app.js
@@ -104,7 +104,7 @@ var activityUploaded;
         updateTopAct();
     });
     $("#showDates").on("click", function () {
-        init();
+        updateProd();
     });
     document.getElementById('fileEfficency').addEventListener('change', onChangeEfficency);
     document.getElementById('fileActivity').addEventListener('change', onChangeActivity);
@@ -265,7 +265,7 @@ function calcEfficiency(file) {
     chart.draw(data, options);
 }
 
-function updateProdTrend() {
+function updateProd() {
     if (efficencyUploaded != null && usingFiles)
         calcEfficiency(efficencyUploaded);
     if (!usingFiles)
@@ -479,6 +479,7 @@ function filter(arr, cond) {
 function findAvg(arr) {
 
     avg = findSum(arr) / arr.length;
+    //TODO: maybe is better use the time instead of the number of the points gathered
     return avg;
 }
 
@@ -621,4 +622,5 @@ function updateTopAct() {
 }
 
 //TODO: salva mega report as jpg/png... come una spece di screenshot di tutta la pagina
-//TODO: pie chart per le activities?
\ No newline at end of file
+//TODO: pie chart per le activities?
+//TODO: controllo se c'è l'apikey quando si elabora
diff --git a/style.css b/style.css
index 2c21c84..2df3320 100644
--- a/style.css
+++ b/style.css
@@ -25,6 +25,10 @@
     animation: rotateplane 1.2s infinite ease-in-out;
 }
 
+blockquote{
+    z-index: 10;
+}
+
 .input-group {
     float: left;
     margin-right: 20px;