function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {alert(alerttxt);return false;}
  else {return true;}
  }
}

function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else {return true;}
  }
}

function validate_form(thisform)
{
with (thisform)
  {
  if (validate_required(enquiryForm_name,"* Please complete all required fields")==false)
    {enquiryForm_name.focus();return false;}
	
  else if (validate_required(enquiryForm_phone,"* Please complete all required fields")==false)
    {enquiryForm_phone.focus();return false;}
	
  else if (validate_required(enquiryForm_details_acc,"* Please complete all required fields")==false)
    {enquiryForm_details_acc.focus();return false;}
  
  else if (validate_email(enquiryForm_email,"* Please enter a valid email address")==false)
    {enquiryForm_email.focus();return false;}
  }
}