Павел Турченко,
вариант...
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.year_div{
display: none;
}
.red{
background-color: #FF0000;
color: #FFFFFF;
padding: 2px 5px;
border-radius: 4px;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function() {
var b = $(".year_div"),
c = $("#year_link"),
d = $(".year_dropdown",b);
c.add(b).click(function(a) {
a.preventDefault();
a = $(a.target);
a.is(d) && c.text(a.text()) && d.not(a.addClass('red')).removeClass('red');
b.slideToggle()
})
});
</script>
</head>
<body>
<a href="#" class="btn btn-default dropdown-toggle btn_grey" id="year_link">Год выпуска </a>
<div class="div_dropdown year_div">
<a href="#" class="year_dropdown">1999</a>
<a href="#" class="year_dropdown">2000</a>
<a href="#" class="year_dropdown">2001</a>
<a href="#" class="year_dropdown">2002</a>
<a href="#" class="year_dropdown">2003</a>
<a href="#" class="year_dropdown">2004</a>
</div>
</body>
</html>