<!--
var credit_card_type_field='bill_cc';
// JavaScript Document
function validate(frm){
  for(i=0; i<fields.length; i++){
    fldtype=fldType(frm, fields[i].name);
    if (is_gecko || is_ie5up){
	  if(!fldtype){
	    fldtype='undefined';
	  }
	}
    switch (fldtype){
	  case "text":
        if (!textValidate(fields[i], frm)){
		  return false;
	    }
		break;
	  case "textarea":
        if (!textareaValidate(fields[i], frm)){
		  return false;
	    }
		break;		
	  case "select-one":
        if (!selectOneValidate(fields[i], frm)){
		  return false;
	    }
		break;			
      case 'undefined':
        fldtypeu=fldTypeU(frm, fields[i].name);
        if (fldtypeu=="radio"){
          if (!radioValidate(fields[i], frm)){		
		    return false;
	      }		
		}
	    break;
	}
  }
  return true;
}

function fldType(frm, fldname){
  var frmname=frm.name;
  return eval("document."+frmname+"."+fields[i].name+".type");
}

function fldTypeU(frm, fldname){
  var frmname=frm.name;
  return eval("document."+frmname+"."+fields[i].name+"[0].type");
}

function fldValue(frm, fldname){
  var frmname=frm.name;
  return eval("document."+frmname+"."+fields[i].name+".value");
}


function fldRef(frm, fldname){
  var frmname=frm.name;
  return eval("document."+frmname+"."+fields[i].name);
}

function textValidate(fld, frm){
  fldvalue=fldValue(frm, fld.name);
  fldref=fldRef(frm, fields[i].name);
  if(fld.mandatory && fldvalue==""){
    alert ("Missing Required Field: "+fields[i].label);  
	fldref.focus();
    return false;
  }
  if(fld.numeric){
    if (isNaN(fldvalue)){
      alert ("Non Numeric Data In Field "+fields[i].label);  
	  fldref.focus();
      return false;
	}
  }  
  if(fld.email){
    if(!emailCheck(fldref)){
      alert ("Invalid E-Mail Address");  
	  fldref.focus();  
	  return false;
	}
  }  

  if(fld.ccnum){
    var ccfield=eval("document."+frm.name+"."+credit_card_type_field);
    if(!ccformatValidate(fldvalue, ccfield)){
      alert ("Invalid Credit Card Number");  
	  fldref.focus();  
	  return false;
	}
  }  
  
  return true;
}

function textareaValidate(fld, frm){
  fldvalue=fldValue(frm, fld.name);
  fldref=fldRef(frm, fields[i].name);
  if(fld.mandatory && fldvalue==""){
    alert ("Missing Required Field: "+fields[i].label);  
	fldref.focus();
    return false;
  }
  if(fld.numeric){
    if (isNaN(fldvalue)){
      alert ("Non Numeric Data In Field "+fields[i].label);  
	  fldref.focus();
      return false;
	}
  }  
  if(fld.email){
    if(!emailCheck(fldref)){
      alert ("Invalid E-Mail Address");  
	  fldref.focus();  
	  return false;
	}
  }  
  return true;
}

function radioValidate(fld, frm){
  fldref=fldRef(frm, fields[i].name);
  if(fld.mandatory){
    for(ii=0; ii<fldref.length; ii++){
      if(fldref[ii].checked){
	    return true;
	  }
    }
    alert ("Missing Required Field: "+fields[i].label);  
    fldref[0].focus();  
    return false;
  }

  if(fld.numeric){
    for(ii=0; ii<fldref.length; ii++){   
      if(!isNaN(fldref[ii].value)){
	    return true;
	  }
    }
    alert ("Non Numeric Data In Field "+fields[i].label);  
    fldref[0].focus();  
    return false;
  }
  return true;
}

function selectOneValidate(fld, frm){
  fldvalue=fldValue(frm, fld.name);
  fldref=fldRef(frm, fields[i].name);
  if(fld.mandatory && fldvalue==""){
    alert ("Missing Required Field: "+fields[i].label);  
	fldref.focus();
    return false;
  }
  if(fld.numeric){
    if (isNaN(fldvalue)){
      alert ("Non Numeric Data In Field "+fields[i].label);  
	  fldref.focus();
      return false;
	}
  }  
  if(fld.email){
	return emailCheck(fldref);
  }  
  return true;
}

function emailCheck (fld) {
  var emailStr=fld.value
/* 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=emailStr.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("Email address seems incorrect (check @ and .'s)")
	//fld.focus()
	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("The username doesn't seem to be valid.")
	//fld.focus()
    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("Destination IP address is invalid!")
        //fld.focus()
	 	return false
	  }
    }
    return true
  }

// Domain is symbolic name
  var domainArray=domain.match(domainPat)
  if (domainArray==null) {
	//alert("The domain name doesn't seem to be valid.")
	//fld.focus()
    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("The address must end in a three-letter domain, or two letter country.")
   //fld.focus()
   return false
  }

// Make sure there's a host name preceding the domain.
  if (len<2) {
    //var errStr="This address is missing a hostname!"
    //alert(errStr)
   //fld.focus()
     return false
  }

// If we've gotten this far, everything's valid!
  return true;
}
//  End 


function ccformatValidate(cardNumber, ccfld) {
  if (ccfld[0].checked) cardType="mastercard";
  if (ccfld[1].checked) cardType="visa";
  if (ccfld[2].checked) cardType="amex";
  if (ccfld[3].checked) cardType="discover";

  var isValid = false;
  var ccCheckRegExp = /[^\d ]/;
  isValid = !ccCheckRegExp.test(cardNumber);

  if (isValid)
  {
    var cardNumbersOnly = cardNumber.replace(/ /g,"");
    var cardNumberLength = cardNumbersOnly.length;
    var lengthIsValid = false;
    var prefixIsValid = false;
    var prefixRegExp;

    switch(cardType)
    {
      case "mastercard":
        lengthIsValid = (cardNumberLength == 16);
        prefixRegExp = /^5[1-5]/;
        break;

      case "visa":
        lengthIsValid = (cardNumberLength == 16 || cardNumberLength == 13);
        prefixRegExp = /^4/;
        break;

      case "amex":
        lengthIsValid = (cardNumberLength == 15);
        prefixRegExp = /^3(4|7)/;
        break;

      default:
        prefixRegExp = /^$/;
        //alert("Card type not found");
    }

    prefixIsValid = prefixRegExp.test(cardNumbersOnly);
    isValid = prefixIsValid && lengthIsValid;
  }

  if (isValid && cardType!='discover')
  {
    var numberProduct;
    var numberProductDigitIndex;
    var checkSumTotal = 0;

    for (digitCounter = cardNumberLength - 1; 
      digitCounter >= 0; 
      digitCounter--)
    {
      checkSumTotal += parseInt (cardNumbersOnly.charAt(digitCounter));
      digitCounter--;
      numberProduct = String((cardNumbersOnly.charAt(digitCounter) * 2));
      for (var productDigitCounter = 0;
        productDigitCounter < numberProduct.length; 
        productDigitCounter++)
      {
        checkSumTotal += 
          parseInt(numberProduct.charAt(productDigitCounter));
      }
    }

    isValid = (checkSumTotal % 10 == 0);
  }

  return isValid;
}
// -->