jQuery ajax form submit - multiple post/get requests caused when validation fails

jQuery ajax form submit - multiple post/get requests caused when validation fails

Hi, I have a problem where if a form submission (set up to submit via AJAX) fails validation, the next time the form is submitted, it doubles the number of post requests - which is definitely not what I want to happen. I'm using the jQuery ValidationEngine plugin to submit forms and bind validation messages to my fields. This is my code below. I think my problem is that I need to unbind from the validationEngine plugin when the form fails, but I can't figure out how to do this.  Any ideas? 

  1.  $('input#eligibility').live("click", function(){
                $
    (".form_container form").validationEngine({
                    ajaxSubmit
    : true,
                    ajaxSubmitFile
    : $('.form_container form').attr('action'),
                    success 
    :  function() {
                        
    var url = $('input.next').attr('rel');
                        ajaxFormStage
    (url);
                    
    },
                    failure 
    : function() {
                        
    //unique stuff for this form
                    
    }
                
    });
            
    });