How to close drop down by clicking anywhere on page?
<p>Below is a simple code for javascript dropdown menu given by w3schools, I wanted two dropdowns so I created a duplicate with changed element and variable names. Both dropdowns work fine except now I can't close opened drop down by clicking anywhere on web page which worked fine with one dropdown. So how can I make that work while having two drop downs.</p>

<p><div class="snippet" data-lang="js" data-hide="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>/* When the user clicks on the button,
toggle between hiding and showing the dropdown content */
function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

// Close the dropdown menu if the user clicks outside of it
window.onclick = function(event) {
  if (!event.target.matches('.dropbtn')) {

    var dropdowns = document.getElementsByClassName("dropdown-content");
    var i;
    for (i = 0; i &lt; dropdowns.length; i++) {
      var openDropdown = dropdowns[i];
      if (openDropdown.classList.contains('show')) {
        openDropdown.classList.remove('show');
      }
    }
  }
}


/* When the user clicks on the button,
toggle between hiding and showing the dropdown content */
function myFunction2() {
  document.getElementById("myDropdown2").classList.toggle("show");
}

// Close the dropdown menu if the user clicks outside of it
window.onclick = function(event) {
  if (!event.target.matches('.dropbtn2')) {

    var dropdown = document.getElementsByClassName("dropdown-content2");
    var e;
    for (e = 0; i &lt; dropdown.length; e++) {
      var opendropdown = dropdown[e];
      if (openDropdown.classList.contains('show')) {
        openDropdown.classList.remove('show');
      }
    }
  }
}</code></pre>
<pre class="snippet-code-css lang-css prettyprint-override"><code>/* Dropdown Button */

.dropbtn {
  background-color: #4CAF50;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}
/* Dropdown button on hover &amp; focus */

.dropbtn:hover,
.dropbtn:focus {
  background-color: #3e8e41;
}
/* The container &lt;div&gt; - needed to position the dropdown content */

.dropdown {
  position: relative;
  display: inline-block;
}
/* Dropdown Content (Hidden by Default) */

.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}
/* Links inside the dropdown */

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}
/* Change color of dropdown links on hover */

.dropdown-content a:hover {
  background-color: #f1f1f1
}
/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */

.show {
  display: block;
}
/* Dropdown Button */

.dropbtn2 {
  background-color: #4CAF50;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}
/* Dropdown button on hover &amp; focus */

.dropbtn2:hover,
.dropbtn2:focus {
  background-color: #3e8e41;
}
/* The container &lt;div&gt; - needed to position the dropdown content */

.dropdown2 {
  position: relative;
  display: inline-block;
}
/* Dropdown Content (Hidden by Default) */

.dropdown-content2 {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
}
/* Links inside the dropdown */

.dropdown-content2 a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}
/* Change color of dropdown links on hover */

.dropdown-content2 a:hover {
  background-color: #f1f1f1
}
/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */

.show {
  display: block;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"&gt;&lt;/script&gt;
&lt;table&gt;
  &lt;tr&gt;
    &lt;td&gt;
      &lt;div class="dropdown"&gt;
        &lt;button onclick="myFunction()" class="dropbtn"&gt;Dropdown&lt;/button&gt;
        &lt;div id="myDropdown" class="dropdown-content"&gt;
          &lt;a href="#"&gt;Link 1&lt;/a&gt;
          &lt;a href="#"&gt;Link 2&lt;/a&gt;
          &lt;a href="#"&gt;Link 3&lt;/a&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/td&gt;
    &lt;td&gt;
      &lt;div class="dropdown2"&gt;
        &lt;button onclick="myFunction2()" class="dropbtn"&gt;Dropdown2&lt;/button&gt;
        &lt;div id="myDropdown2" class="dropdown-content2"&gt;
          &lt;a href="#"&gt;Link 1&lt;/a&gt;
          &lt;a href="#"&gt;Link 2&lt;/a&gt;
          &lt;a href="#"&gt;Link 3&lt;/a&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/td&gt;
  &lt;/tr&gt;
&lt;/table&gt;</code></pre>
</div>
</div>
</p>