Javascript-форум - Необходимо реализовать чтобы выпадающий список закрывали при открытие другого списка

Entrol,
<!DOCTYPE html>

<html>
<head>
  <title>Untitled</title>
  <meta charset="utf-8">
  <style type="text/css">
    * {
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  margin: 0;
    padding: 0;
}

body {
  padding: 40px;
  background-color: #B0C4DE;
}

.select_side {
  display: inline-block;
  min-width: 196px;
  position: relative;
}

.select_side .select {  background-color:  #FFFFFF;
  border: 1px solid #000;
  position: relative;
  height: 39px;
  border-radius: 20px;
  -webkit-border-radius: 20px;
  -moz-border-radius: 20px;
  cursor: pointer;
  padding: 0 47px 0 20px;
  -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;

}

.select_side .select span {
  font-size: 14px;
  color: #2F2F2F;
  line-height: 37px;

}

.select_side .drop {
  position: absolute;
  width: 100%;
  top: 49px;
  right: 0;
  background: #FFF;
  padding: 10px;
  box-shadow: 0 8px 25px 0 rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.06);
  -webkit-box-shadow: 0 8px 25px 0 rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.06);
  -moz-box-shadow: 0 8px 25px 0 rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.06);
  border-radius: 10px;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  z-index: 200;
  transform: scale(0) translate3d(0,-40px,0);
  -webkit-transform: scale(0) translate3d(0,-40px,0);
  -moz-transform: scale(0) translate3d(0,-40px,0);
  -o-transform: scale(0) translate3d(0,-40px,0);
  -ms-transform: scale(0) translate3d(0,-40px,0);
  transform-origin: 50% 0;
  -webkit-transform-origin: 50% 0;
  -moz-transform-origin: 50% 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
}

.select_side.opened .drop {
  transform: scale(1) translate3d(0,0,0);
  -webkit-transform: scale(1) translate3d(0,0,0);
  -moz-transform: scale(1) translate3d(0,0,0);
  -o-transform: scale(1) translate3d(0,0,0);
  -ms-transform: scale(1) translate3d(0,0,0);
  opacity: 1;
  visibility: visible;
}

.select_side .drop:after, .select_side .drop:before {
  bottom: 100%;
  right: 13px;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
}

.select_side .drop:after {
  border-color: rgba(255, 255, 255, 0);
  border-bottom-color: #ffffff;
  border-width: 7px;
}

.select_side .drop:before {
  border-color: rgba(228, 228, 228, 0);
  border-bottom-color: #e4e4e4;
  border-width: 8px;
  margin-right: -1px;
}

.select_side .drop ul {
  display: block;
  max-height: 240px;
  overflow-x: hidden;
  border-top: 1px solid #F2F2F2;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.select_side .drop ul li {
  display: block;
  font-size: 14px;
  cursor: pointer;
  border-bottom: 1px solid #F2F2F2;
  padding: 9px 10px 10px 10px;
}

.select_side .drop ul li:hover, .select_side .drop ul li.active {
  background: #F6F6F6;
}
  </style>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
  <script>
$(function() {
    var side = $(".select_side");
    side.each(function(i) {
        var el = $(this),
            select = el.find(".select"),
            span = select.find("span"),
            li = el.find("li");
        select.click(function(event) {
            side.not(side.eq(i).toggleClass("opened")).removeClass("opened")
        });
        li.click(function(event) {
            li.removeClass('active')
            span.html($(this).addClass('active').html());
            el.removeClass("opened")
        }).filter('.active').click()
    });
    $(document).on("click touchstart", function(e) {
        if (!$(e.target).closest(side).length) side.removeClass("opened")
    })
});
  </script>
</head>

<body>
<div class="select_side">
              <div class="select"><span>Выберите</span></div>
              <div class="drop">
                <ul>
                  <li>1</li>
                  <li>2</li>
                  <li>3</li>
                </ul>
              </div>
            </div>
            <div class="select_side">
              <div class="select"><span>Выберите 2</span></div>
              <div class="drop">
                <ul>
                  <li>44</li>
                  <li class="active">55</li>
                  <li>45</li>
                </ul>
              </div>
            </div>

</body>
</html>