function display(id){
      var traget=document.getElementById(id);
                traget.style.display="";
}
function undisplay(id){
      var traget=document.getElementById(id);
               traget.style.display="none";
   }


function validate_email(field)
{
with (field)
{
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos<1||dotpos-apos<2)
  {display('invalidEmail');return false}
else {undisplay('formBar'); display('validEmail'); undisplay('invalidEmail'); return true}
}
}

function validate_form(thisform)
{
with (thisform)
{
if (validate_email(email)==false)
  {email.focus();return false}
}
}