Hi everyone i need to fix a problem with this upload image code, it is always saying: There was an error during file upload!....because the result inside of the upload.php is always different of 1. check the two files and if you can help me it will be great

PHP Code:
<html>
<
head>
   <
link href="style/style.css" rel="stylesheet" type="text/css" />
   
<
script language="javascript" type="text/javascript">

function 
startUpload(){
      
document.getElementById('f1_upload_process').style.visibility 'visible';
      
document.getElementById('f1_upload_form').style.visibility 'hidden';
      return 
true;
}

function 
stopUpload(success){
      var 
result '';
      if (
success == 1){
         
result '<span class="msg">The file was uploaded successfully!<\/span><br/><br/>';
      }
      else {
         
result '<span class="emsg">There was an error during file upload!<\/span><br/><br/>';
      }
      
document.getElementById('f1_upload_process').style.visibility 'hidden';
      
document.getElementById('f1_upload_form').innerHTML result '<label>File: <input name="myfile" type="file" size="30" /><\/label><label><input type="submit" name="submitBtn" class="sbtn" value="Upload" /><\/label>';
      
document.getElementById('f1_upload_form').style.visibility 'visible';      
      return 
true;   
}
</script>   
</head>

<body>
       <div id="container">
            <div id="header"><div id="header_left"></div>
            <div id="header_main">Ajax Upload</div><div id="header_right"></div></div>
            <div id="content">
                <form action="upload.php" method="post" enctype="multipart/form-data" target="upload_target" onsubmit="startUpload();" >
                     <p id="f1_upload_process">Loading...<br/><img src="loader.gif" /><br/></p>
                     <p id="f1_upload_form" align="center"><br/>
                         <label>File:  
                              <input id="file" type="file" name="file" size="30" />
                         </label>
                         <label>
                             <input type="submit" name="submitBtn" class="sbtn" value="Upload" />
                         </label>
                     </p>
                     
                     <iframe id="upload_target" name="upload_target" src="#" style="width:0;height:0;border:0px solid #fff;"></iframe>
                 </form>
             </div>
         </div>     
</body> 
</html> 
upload.php
PHP Code:
<?php
   
// Edit upload location here
   
$destination_path "photos/";

   
$result 0;
   
   
$target_path $destination_path basename$_FILES['file']['name']);

   if(@
move_uploaded_file($_FILES['file']['tmp_name'], $target_path)) {
      
$result 1;
   }
   
   
sleep(1);
?>

<script language="javascript" type="text/javascript">window.top.window.stopUpload(<?php echo $result?>);</script>
Thanks