function email_focus(e,o){
if(o.firstTime){return}
o.firstTime=true
o.value=""
}

function validate_email(field)
{
with (field)
{
apos=value.indexOf("@");
dotpos=value.lastIndexOf(".");
if (apos<1||dotpos-apos<2) 
  {alert('Not a Valid Email Address.');return false;}
else {return true;}
}
}