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 (thisform.name.value == "") {
    alert( "Please enter your name." );
    thisform.name.focus();
    return false ;
  }
  
  	if (thisform.who.value == "0") {
    alert( "Please enter who you would like to direct the message to." );
    thisform.who.focus();
    return false ;
  }

  
  if (validate_email(email,"Not a valid e-mail address!")==false)
    {email.focus();return false;}
		
   			
  }
}