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grab form value before submission


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ok, so how can I grab $value before the form submits and I want to put it into the image field:


include_once "secure/connect_to_mysql.php";

function genRandomString($length = 20) {
     $characters = '0123456789';
     $string ='';    

    for ($p = 0; $p < $length; $p++) {
         $string .= $characters[mt_rand(0, strlen($characters))];

    return $string;

if ($_POST['submit']) {
$name = $_POST['name'];
$id = $_POST['id'];
$image = $_POST['image'];
$event = $_POST['event'];
$template  = 'Templates/index.php';
$picture = '$name.png';
$id =  genRandomString(); //this could be the uploaded picture

//we need just the filename - no extension
$picture_name = pathinfo($picture, PATHINFO_FILENAME);
$sql = "INSERT INTO pictures (name, id, image,  event) 
	VALUES('$name', '$id','$image','$event')";
$rs = mysql_query($sql) or die ("Problem with the query: $sql<br>" . mysql_error());
	echo mysql_error();
	$target_path = "images/";

foreach ($_FILES["uploadedfile"]["name"] as $key => $value) {
$uploadfile = $target_path . basename($_FILES[uploadedfile][name][$key]);
//echo $uploadfile;
if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'][$key], $uploadfile)) { echo $value . ' uploaded<br>'; }
copy($template, "$name.php");


<form action="new.php" method="post" enctype="multipart/form-data"><input name="name" type="text" /><input name="id" type="hidden" value=<?php echo $id; ?> /><br />
<input name="event" type="text" /><input name="image" type="text" value="images/<?php echo $value; ?>" /><input type="hidden" name="MAX_FILE_SIZE" value="900000000000000000000000000000000000000000000000000000000000000000000000000" />
Choose a file to upload:

     <div id="dynamicInput">
          Entry 1<br><input type="file" name="uploadedfile[]">
     <input type="button" value="Add another text input" onClick="addInput('dynamicInput');">
<br /><input name="submit" type="submit" value="submit" /></form>


if I do it after the form submits then it shows up, is there a way to make it appear before it submits....like a second field echoing what the first field has typed it and it updates "live"?

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