const blanks = new RegExp(/^\s*$/)
function blnk(x) {
return x.match(blanks) != null;
}
function subchk() {
var form = document.getElementById("regform");
var err = '';
if(blnk(form.userid.value))
err = 'No userid.';
else if(blnk(form.username.value))
err = 'No user human name.';
else if(blnk(form.pwd1.value))
err = 'Please enter a password';
else if(blnk(form.pwd2.value))
err = 'Please confirm your password';
else if(form.pwd1.value != form.pwd2.value)
err = 'Passwords do not match.';
if(err == '') {
return true;
} else {
// Make the error mesage. We'll have to add the
// the div for it
var errarea = document.getElementById("err");
if(errarea == null) {
errarea = document.createElement('div')
document.getElementsByTagName("body")[0].appendChild(errarea);
errarea.setAttribute("id", "err");
errarea.setAttribute("class", "err");
}
errarea.textContent = err;
return false;
}
}