upload file jquery

hi my name is luca! im just a beginner with jquery and i completely stuck on uploading a file开发者_开发问答(or more) with jquery. Im actually trying to post a form (with input fields like "title","text"..plus the file upload one) with jquery and i can get all of the input file posted correctly in the $_POST array..but i have problems with the $_FILES one.

I'm using the Multiple File Upload plugin and as I read in the documentation i Just add the multi class to my file input element.

here it follows jquery little code:

$(document).ready(function(){
  $(".submit").click(function(){  
    var title=$("#title").val();  
    var article=$("#article").val();  
    var images=$("#image").val();     
    var dataString="title="+title+"&article="+article+"images[]="+images;  

    $.ajax({  
      type: "POST",  
      url: "php/newPost.php",  
      data: dataString,  
      cache: false,  
      success: function(html){ //here i handle the received content  
      }  
    });     
  });  
});  

It is sending correctly everything except for the input file element..so please let me know how should i do.. I dont want to use iFrames and flash plugins =) thanks Luca

---

The first question that needs to be answered is do you have the following attribute applied to your form tag?

enctype="multipart/form-data"