ajaxSubmit中option的参数

var options = {    
       target:        '#output1',   // target element(s) to be updated with server response    
       beforeSubmit:  showRequest,  // pre-submit callback    
       success:       showResponse,  // post-submit callback    
  
       // other available options:    
       url:       url,         // override for form's 'action' attribute    
       type:      type,        // 'get' or 'post', override for form's 'method' attribute    
       dataType:  null,        // 'xml', 'script', or 'json' (expected server response type)    
       clearForm: true,        // clear all form fields after successful submit    
       resetForm: true,        // reset the form after successful submit    
  
       // $.ajax options can be used here too, for example:    
       timeout:   3000    
   };