Show only one div

HTML

<a class="showDiv" href="#">Show div</a>
<div class="tip-2">
<p>This is one!</p>
</div>

<br/><br/>
<a class="showDiv" href="#">Show div</a>
<div class="tip-2">
<p>This is two!</p>
</div>
<br/><br/>
<a class="showDiv" href="#">Show div</a>
<div class="tip-2">
<p>This is two!</p>
</div>
<br/><br/>
<a class="showDiv" href="#">Show div</a>
<div class="tip-2">
<p>This is two!</p>
</div>

JavaScript

element = $('a');
checkedValues = $(element).map(function() {
   return $(this).position().left;
}).get();
alert(checkedValues)