I have a problem with submitting forms with ajax?

[john n]

The form submits information to a mysql DB. It works well in Mozilla firefox but doesnt in microsoft internet explorer. The following is the code

Javascript:
<script language="javascript" src="Javascript/jquery-1.4.2.min.js"></script>
<script>
$(document).ready(function(){
$("#form1").submit(function(){
var name_value=$("#name").attr('value');
var dataString="name="+name_value;

$.ajax({
url:"submitprocess.php",
type:"GET",
data:dataString,
cache: false,
success: function(){
alert("Success!!!");
}
});
return false;
});

});
</script>

PHP:
<?php
require_once('Connections/conn.php');
mysql_select_db($database_conn, $conn);
if(isset($_GET['name'])){
$content=$_GET['name'];
mysql_query("INSERT INTO people (firstname) VALUES ('$content')",$conn) or die(mysql_error());
}
?>
HTML:
<form id="form1" name="form1" method="post" action="">
<p>
<label>
Name
<input type="text" name="name" id="name" />
</label>
</p>
<p>
<label>
<input type="submit" name="submit" id="submit" value="Submit" />
</label>
</p>
</form>