Uploading multiple files

Uploading multiple files

I have several files that I want to upload with jQuery. I am using an script that goes like this:

<input type="file" class="upload" name="files[]" />
<input type="file" class="upload" name="files[]" />
<input type="file" class="upload" name="files[]" />

var filename = $("upload.files").val();
$.ajax({
type: "POST",
url: "addFile.do",
enctype: 'multipart/form-data',
data: {file: filename},
success: function(){
alert( "Data Uploaded: ");
}
});

But there is something that I am missing. Any help?