vik1249,
забыть про live
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js">
</script>
<script>
$(function()
{
$('form.variants').on('click', ':submit', function(event)
{
event.preventDefault();
alert($(this).prev().val());
}
);
}
);
</script>
</head>
<body>
<form class="variants">
<div class="aks">
<input name="variant" value="1" type="hidden"> <input type="submit" value="Нажать">
</div>
<div class="aks">
<input name="variant" value="2" type="hidden"> <input type="submit" value="Нажать">
</div>
</form>
</body>
</html>