Trues,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.one-vybor.activ-vybor .img-vybor:last-child, .one-vybor .img-vybor:first-child{
display: block;
}
.one-vybor.activ-vybor .img-vybor:first-child, .one-vybor .img-vybor:last-child{
display: none;
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function(){
var s = $(".one-vybor");
s.click(function() {
s.not(this).removeClass("activ-vybor");
$(this).toggleClass("activ-vybor");
});
});
</script>
</head>
<body>
<div class='one-vybor activ-vybor'>
<div class='img-vybor'><img src='http://javascript.ru/forum/images/smilies/write.gif' alt=''></div>
<div class='img-vybor '><img src='http://javascript.ru/forum/images/smilies/victory.gif' alt=''></div>
</div>
<div class='one-vybor'>
<div class='img-vybor'><img src='http://javascript.ru/forum/images/smilies/write.gif' alt=''></div>
<div class='img-vybor '><img src='http://javascript.ru/forum/images/smilies/victory.gif' alt=''></div>
</div>
<div class='one-vybor'>
<div class='img-vybor'><img src='http://javascript.ru/forum/images/smilies/write.gif' alt=''></div>
<div class='img-vybor '><img src='http://javascript.ru/forum/images/smilies/victory.gif' alt=''></div>
</div>
</body>
</html>