function contactFields() {
missinginfo = "";
if (document.contactForm.yourName.value == "") {
missinginfo += "\n     -  Your Name";
}
if (document.contactForm.message.value == "") {
missinginfo += "\n     -  Message";
}
if ((document.contactForm.yourEmail.value == "") ||
(document.contactForm.yourEmail.value.indexOf('@') == -1) ||
(document.contactForm.yourEmail.value.indexOf('.') == -1)) {
missinginfo += "\n     -  Email address";
}
if (missinginfo != "") {
missinginfo ="_____________________________\n" +
"These fields are required.\n" +
missinginfo + "\n_____________________________";
alert(missinginfo);
return false;
}
else return true;
}