// Form Validation

function checkFields() {
missinginfo = "";
if (document.f1.Names.value == "") {
missinginfo += "\n     -  Names";
}
if ((document.f1.Email_Address.value == "") || 
(document.f1.Email_Address.value.indexOf('@') == -1) || 
(document.f1.Email_Address.value.indexOf('.') == -1)) {
missinginfo += "\n     -  Email address";
}
if (missinginfo != "") {
missinginfo ="_____________________________\n" +
"You failed to correctly fill in your:\n" +
missinginfo + "\n_____________________________" +
"\nPlease re-enter and submit again\nItems marked with a red *";
alert(missinginfo);
return false;
}
else return true;
}