function ResetCheck()
{ chk = window.confirm("Are you sure to cancel and clear form?"); return chk; }



var emaildau   = "Please fill in your e-mail address as \"name@provider.com\".\n\nBe aware of correct spelling.";
var checkinput = "Please check your input.";



function mailform_iwasawa()
{


if(isNaN(document.forms['iwasawaform'].userid.value) == true) 
{ 
alert ("You have filled in a non-numeric system-id.\n\n" + checkinput); 
return false;
}


}