Jquery ui dialog help

$('#upimage1').click(function(){
	var up = '<input id="file_upload" name="file_upload" type="file" />';
	$("#dialog1").html(up);
	
		$( "#dialog1" ).dialog({
			width: 400,
			height: 175,
			modal: true
		});
		
	$('#file_upload').uploadify({
    'uploader'  : 'uploadengine/uploadify.swf',
    'script'    : 'uploadengine/uploadify.php',
    'cancelImg' : 'uploadengine/cancel.png',
    'folder'    : 'uploadengine/uploads',
	'removeCompleted' : false,
	'sizeLimit'   : 2097152,
    'auto'      : true,
	'onComplete'  : function(event, ID, fileObj, response, data) {
			$("#dialog1").dialog('close');
	    	}
	    });		
	   }	  
  });
  
  
		return false;
});

Select allOpen in new window

<div id="dialog1" title="Image Upload" style="display:none;"> </div>


im trying to integrate uploadify plugin into a uidialog everytime dialog opens uploadify content repeating. any idea how to reset after dialog close?



Thanks