function getRadioVal(rb){
	var L=rb.length;var ret="";
	for (var i = 0 ; i< L ; i++)
	 { if(rb[i].checked) { ret=rb[i].value; break; } }
	return(ret);
}



function Form_Validator(theForm)
{

// check to see if the field is blank
if (theForm.name.value == "")
{
alert("โปรดระบุชื่อ-สกุลด้วยค่ะ!");
theForm.name.focus();
return (false);
}

/*Email Validation*/
<!-- Begin

// check to see if the field is blank
if (theForm.email.value == "")
{
alert("โปรดระบุอีเมล์ด้วยค่ะ!");
theForm.email.focus();
return (false);
}

/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address. 
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


/* Finally, let's start trying to figure out if the supplied address is
   valid. */

/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=theForm.email.value.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
	alert("อีเมล์ไม่ถูกต้อง! (ตรวจสอบ @ และ .)")
	theForm.email.focus();
	theForm.email.select();
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("Account Name ของอีเมล์ไม่ถูกต้อง!")
	theForm.email.focus();
	theForm.email.select();
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("IP address ไม่ถูกต้อง!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("โดเมนของอีเมล์ไม่ถูกต้อง!")
	theForm.email.focus();
	theForm.email.select();
    return false
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("อีเมล์แอดเดรสต้องลงท้ายด้วยตัวอักษร 3 ตัว (นามสกุลของโดเมน) หรือตัวอักษร 2 ตัว (ตัวอักษรย่อของประเทศ)")
	theForm.email.focus();
	theForm.email.select();
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="อีเมล์แอดเดรสไม่ถูกต้อง!"
   alert(errStr)
	theForm.email.focus();
	theForm.email.select();
   return false
}
//  End -->

// check phone number
if (theForm.phone.value==""){
	alert("โปรดระบุเบอร์โทรศัพท์ด้วยค่ะ!")
	theForm.phone.focus();
	return false;
}

if (theForm.order_id.value == "")
{
alert("โปรดระบุหมายเลขการสั่งสินค้า(Order ID)ด้วยค่ะ!");
theForm.order_id.focus();
return (false);
}

// check to see if the field is blank
if (getRadioVal(theForm.account) == '')
{
	alert ("โปรดระบุธนาคารที่โอนเงินด้วยค่ะ ...");
	theForm.account[0].focus();
	return false;
}

// check to see if the field is blank
if (theForm.place.value == "")
{
alert("โปรดระบุสถานที่โอนเงินด้วยค่ะ!");
theForm.place.focus();
return (false);
}

// check to see if the field is blank
//if (theForm.branch.value == "")
//{
//alert("โปรดระบุสาขา/เลขที่เครื่อง ATM ด้วยค่ะ!");
//theForm.branch.focus();
//return (false);
//}

// check to see if the field is blank
//if (theForm.slip_id.value == "")
//{
//alert("โปรดระบุเลขที่สำเนาสลิปด้วยค่ะ!");
//theForm.slip_id.focus();
//return (false);
//}

// check to see if the field is blank
if (theForm.tdate.value == "")
{
alert("โปรดระบุวันที่โอนเงินด้วยค่ะ!");
theForm.tdate.focus();
return (false);
}

if (theForm.tmonth.value == "")
{
alert("โปรดระบุเดือนที่โอนเงินด้วยค่ะ!");
theForm.tmonth.focus();
return (false);
}

// check to see if the field is blank
if (theForm.money.value == "")
{
alert("โปรดระบุจำนวนเงินที่โอนด้วยค่ะ!");
theForm.money.focus();
return (false);
}

return true;
}