//Check email address confirms to standard layout
function isEmailAddr(email)
{
  var result = false
  var theStr = new String(email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

//Check customer details form is completed
function validateDetails(frm) {
    //
    // Check the Email field to see if any characters were entered
    //
    
    if (frm.Name.value.length == 0)
    {
        alert("Please enter your Name.")
        frm.Name.focus()
        return false
    }

    if (frm.Address.value.length == 0)
    {
        alert("Please enter your Address.")
        frm.Address.focus()
        return false
    }

    if (frm.Postcode.value.length == 0)
    {
        alert("Please enter your Postcode.")
        frm.Postcode.focus()
        return false
    }

    if (frm.email.value.length == 0)
    {
        alert("Please enter your email address.")
        frm.email.focus()
        return false
    }
	
	  if (!isEmailAddr(frm.email.value))
  {
    alert("Please enter a complete email address in the form: yourname@yourdomain.com");
    frm.email.focus();
    return (false);
  }
  

    if (frm.Telephone.value.length == 0)
    {
        alert("Please enter your Telephone.")
        frm.Telephone.focus()
        return false
    }
    
}