// JavaScript Document

function validate(frm) {
  var msg;
  var err = 0;
  msg = "The following errors occurred:\n";

  if (frm.name.value == "") {
        msg += "\tYou have not supplied your name.\n";
        if (err ==0)
                err = 1;
  }

  if (frm.postal_address.value == "") {
        msg += "\tYou have not supplied your postal address\n";
        if (err ==0)
                err = 2;
  }
  
  if (frm.postcode.value == "") {
        msg += "\tYou have not supplied your postcode\n";
        if (err ==0)
                err = 3;
  }

  if (frm.email_address.value == "") {
        msg += "\tYou have not supplied your email address.\n";
        if (err ==0)
                err = 4;
  }
    


// Email Contents



  if (err > 0) {
	alert(msg);
  } else {
	
	frm.submit();

  }   

}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;


   for (i = 0; i < sText.length && IsNumber == true; i++)
      {
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1)
         {
         IsNumber = false;
         }
      }
   return IsNumber;

   }