jquery file upload

hi i am trying to upload a file with jquery but i am failed

here is my code

[code=html]
<script src=”js/jquery.js” language=”javascript”></script>
<script src=”js/jquery.form.js” language=”javascript”></script>
<script language=”javascript”>
function getResult(){
var encoded=document.getElementById(‘file’).value;
//var encoded=encodeURI(text);
$(document).ready(function() {
$(‘#result_query’).html(‘<p style=”text-align:center;”><img src=”images/ajax-loader.gif” width=”220″ height=”19″ /></p>’);

$(‘#result_query’).load(‘ajax.php?query=’+encoded);
});
}
</script>

<p>
<input name=”file” id=”file” type=”file” onchange=”getResult()” />
</p>

[/code]

and the php code

[code=php]

$query=$_REQUEST[‘query’];

$query= $_FILES[$query][“name”];

move_uploaded_file($_FILES[“query”][“tmp_name”],”images/” .$query);

[/code]

when i echo the $queryz with $_REQUEST method variable the variable shown the img name but the $query= $_FILES[$query][“name”]; this thing shown nothing and not upload the file in images folder

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