Prorab337,
<!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(){
$('input[name *= addess]').replaceWith('<select name="address"><option value="1">Адрес1</option></select>');
var a = $('#form').find('select,input');
alert([a.length,a[0]])
});
</script>
</head>
<body> <form action="" id="form"><input type="text" name="addess"></form>
</body>
</html>