title: Values from Javascript to HTML won't read in the Server Side
body: <p>This is my function for the <code>onchange</code> event</p>
  
  <p>Javascript code:</p>
  
  <pre><code> function optionsModel() {
          var x = document.getElementById("model");
          var option = document.createElement("option");
          var makeValue = document.getElementById("make").value;
          x.innerHTML = "";
          option.text = "Model";
          x.add(option);
          option.innerHTML = "Model";
          if (makeValue == "ALFA ROMEO") {
              var opt = document.createElement('option');
              opt.innerHTML = "156";
              x.appendChild(opt);
          }
          else if (makeValue == "AUDI") {
              var audi = ["A3", "A4", "TT"];
              for (var i = 0; i &lt; 3; i++) {
                  var opt = document.createElement('option');
                  opt.value = audi[i];
                  opt.innerHTML = audi[i];
                  x.appendChild(opt);
              }
          }
       }
  </code></pre>
  
  <p><code>.aspx</code> + HTML code:</p>
  
  <pre><code>    &lt;body&gt;
    &lt;div class="container form-group"&gt;
      &lt;div class="row"&gt;
      &lt;form runat="server"&gt;
        &lt;div class="col-md-6"&gt;
            &lt;select class="form-control" name="Make" id="make" runat="server" onchange=" return optionsModel()"&gt;
                &lt;option value="select" selected&gt;Select Make&lt;/option&gt;
                &lt;option value="ALFA ROMEO"&gt;ALFA ROMEO&lt;/option&gt;
                &lt;option value="AUDI"&gt;AUDI&lt;/option&gt;
            &lt;/select&gt;&lt;/div&gt;
        &lt;div class="col-md-6"&gt; &lt;select class="form-control" name="Model" id="model" runat="server"&gt;
          &lt;option value="Model"&gt;Model&lt;/option&gt;
        &lt;/select&gt;&lt;/div&gt;
  </code></pre>
  
  <p><code>aspx.cs</code></p>
  
  <pre><code>protected void Button1_Click(object sender, EventArgs e)
          {
              string modelValue = this.model.Value;
              string makeValue = this.make.Value;
           }
  </code></pre>
  
  <p>When i select ALFA ROMEO in the Make Select tag, the Model tag will display the specific options but when i press the button it will give the modelValue a "Model".It means that the values from the JS were not transferred in the server side. How can I get those values on server side?</p>