Ajax frontend for my backoffice in jQuery and PHP

This is my way to organize php for a simple jQuery frontend ajax based:

1.in a administration page include the php that generate html for each box
2.for each box setup behavior in Javascript
3.let each php manage POST request (for change/update) and GET request for show content

So in admin.php we could have something like that

<img src=”button.png” id=”btn_change” />
<div id=”box-profilo”>
<?php include “box-profilo.php”>
</div>

For setup behavior in javascript I use jQuery and an utility function (in admin.php):

CheckForm = function(d,f,o){return f.valid();};
   function addModBehav(link,div,url,form,cancel) {
   var revert = function() {
     $(div).load(url,function(){
	 $(link).show();
       });
   }
   $(link).click(function(){
       $(div).load(url+"?method=modify",
		   function(){
		     $(link).hide();
		     $(form).ajaxForm({target:div,
			   beforeSubmit:CheckForm,
			   success:function(){$(link).show();}});
		     $(cancel).click(revert);
		   });
       return false;
     });
 }
   $(function(){
       addModBehav("#btn_change","#box-profilo",
		   'box-profilo.php',"#form_profilo",
		   "#cancel");
});

box-profilo.php contains something like

<?php
if(isset($_POST['save'])) {
// save code
}
$method='view';
if(isset($_GET['method'])) {
$method=$_GET['method'];
}
if(method =='modify') {
?>
<form id=”form_profilo” action=”box-profilo.php” method=”post”>
….
<input type=”button” id=”cancel” />
</form>
<?php
} else {
// show data
}
?>

Used plugins:
ajaxForm plugin for function ajaxForm()
Validation plugin for function valid() (in CheckForm)