การส่งค่า ระหว่าง jquery กับ php พอดีผมทำหน้าให้ register ทีนี้ เลยใช้ jquery มาเช็ค form ตอนเช็ค ลองมั่วๆ ดูได้แล้วครับ

<script src="js/jquery.js" type="text/javascript"></script>
<script src="js/jquery.validate.js" type="text/javascript"></script>

<script type="text/javascript">
$.validator.setDefaults({
	submitHandler: function() 
	{ 
	
	   /*alert("submitted!"); */
	    window.location = 'acceptterms.php';
	
	}
});

$().ready(function() {
	// validate the comment form when it is submitted
	$("#commentForm").validate();
	
	// validate signup form on keyup and submit
	$("#signupForm").validate({
		rules: {
			firstname: "required",
			lastname: "required",
			address: "required",
			city: "required",
			phone: "required",
			email: {
				required: true,
				email: true
			},
			
			confirm_email: {
				required: true,
				email: true,
				equalTo: "#email"
			},
			topic: {
				required: "#newsletter:checked",
				minlength: 2
			},
			agree: "required"
		},
		
		messages: {
			firstname: "Please enter your firstname",
			lastname: "Please enter your lastname",
			address: "Please enter your address",
			city: "Please enter your city",
			phone: "Please enter your phone number",
			email: "Please enter a valid email address.",
			confirm_email: {
				required: "Please enter a valid email address.",
				email: "Please enter a valid email address.",
				equalTo: "Please enter the same value again."
			},
			agree: "Please accept"
		   }
		   
	});
	
	
	
});
</script>


<form class="cmxform" id="signupForm" method="post" action="insert_regis.php">

<table width="560"  cellspacing="2" cellpadding="2" class="outline_tb">
  <tr>
    <td width="136" align="right" valign="middle">First name* :</td>
    <td width="8">&nbsp;</td>
    <td width="398" align="left" valign="middle"><input type="text" id="firstname" name="firstname" /></td>
  </tr>
  <tr>
    <td align="right" valign="middle">Last name* :</td>
    <td>&nbsp;</td>
    <td align="left" valign="middle"><input id="lastname" name="lastname" type="text" /></td>
  </tr>
  <tr>
    <td align="right" valign="middle">Address* :</td>
    <td>&nbsp;</td>
    <td align="left" valign="middle"><input id="address" name="address" /></td>
  </tr>
  <tr>
    <td align="right" valign="middle">City* :</td>
    <td>&nbsp;</td>
    <td align="left" valign="middle"><input name="city" type="text" id="city" /></td>
  </tr>
</table>

</form>