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(FirstName,"You must fill out your first name.")==false)
  {FirstName.focus();return false;}
  
  if (validate_required(LastName,"You must fill out your last name.")==false)
  {LastName.focus();return false;}
  
    if (validate_email(Email,"You must enter a valid e-mail address.")==false)
    {Email.focus();return false;}
 
  }
}
function autotab(original,destination){
if (original.getAttribute&&original.value.length==original.getAttribute("maxlength"))
destination.focus()
}