// JavaScript Document
// validate fields
//spam-proof email
function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false}
else {return true}
}
}
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_form(thisform)
{ 
with (thisform)
{
if (validate_required(name,"Please provide your name.")==false)
  {name.focus();return false}
if (validate_email(email,"Please provide a valid email address.")==false)
  {email.focus();return false}
if (validate_required(msg,"Please write a short message.")==false)
  {msg.focus();return false}
}
}
//-->