function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    field.style.border = "solid 1px red";document.getElementById('error').style.display = "block";return false;
    }
  else
    {
    return true;
    }
  }
}
function validate_email(field,alerttxt)
{
with (field)
  {
  apos=value.indexOf("@");
  dotpos=value.lastIndexOf(".");
  if (apos<1||dotpos-apos<2)
    {field.style.border = "solid 1px red";document.getElementById('error').style.display = "block";return false;}
  else {return true;}
  }
}
function validate_form(thisform)
{
with (thisform)
  {
  
  if (validate_required(name,"Name must be filled out!")==false)
  {email.focus();return false;}
  
  if (validate_email(email,"Not a valid e-mail address!")==false)
    {email.focus();return false;}
  }
}