$(document).ready(function(){  
	  
	  
	  $('#form1').validate({
		rules: {
			commerciale: {
				required: function(element) {
					return !$("#commerciale2").is(':checked');
				}
			},
			commerciale2: {
				required: function(element) {
					return !$("#commerciale").is(':checked');
				}
			}
		}
	  });
	  
	    var options = { 
	            target:        '#error',   // target element(s) to be updated with server response 
	            beforeSubmit:  showRequest,  // pre-submit callback 
	            success:       showResponse  // post-submit callback 
	        }; 
	     
	    // bind form using 'ajaxForm' 
	    //$('#form1').ajaxForm(options);
  });


//pre-submit callback 
  function showRequest(formData, jqForm, options) { 

	  if($("#form1").valid())
	  {
		  $("#error").html('Attendere invio del form in corso.. ');
		  return true;  
		  
	  } else return false;

	  
  } 
   
  // post-submit callback 
  function showResponse(responseText, statusText)  { 
	  $("#error").html(responseText);  
  }