// --- store info popup window:
function infopop(url) {
mywin =
window.open(url,"infowin",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=625,height=450');
}

// -- required form fields for "Contact" form:
function checkContactFields() {
missinginfo = "";
if (document.formContact.name.value == "") {
missinginfo += "\n     -  name";
}
if ((document.formContact.email.value == "") || 
(document.formContact.email.value.indexOf('@') == -1) || 
(document.formContact.email.value.indexOf('.') == -1)) {
missinginfo += "\n     -  valid email";
}
if (document.formContact.message.value == "") {
missinginfo += "\n     -  message";
}
if (missinginfo != "") {
missinginfo ="Please fill in the following fields:\n" +
missinginfo + "\n\nThanks!";
alert(missinginfo);
return false;
}
else return true;
}