ufaclub,
<!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").each(function(indx, element){
this.nextElementSibling.childNodes[0].data=this.edtunitprice.value+" Р "
});
});
</script>
</head>
<body> <div id="pizzabloc">
<form name='addtocart225' action='index.php' method='post'>
<div class='atczone'>
<input type='submit' name='submit' value='Добавить в корзину' class='scp_atc' /></div>
<input type='hidden' name='edtunitprice' value='379' />
<input type='hidden' name='lasturl' value='index.php' />
</form>
<div id="bbprice">*** Р <span>x</span></div>
</div>
<div id="pizzabloc">
<form name='addtocart226' action='index.php' method='post'>
<div class='atczone'>
<input type='submit' name='submit' value='Добавить в корзину' class='scp_atc' /></div>
<input type='hidden' name='edtunitprice' value='400' />
<input type='hidden' name='lasturl' value='index.php' />
</form>
<div id="bbprice">*** Р <span>x</span></div>
</div>
</body>
</html>