function checkFields() {
missinginfo = "";
if (document.form.name.value == "") {
missinginfo += "\n     -  Name";
}

if ((document.form.email.value == "") || 
(document.form.email.value.indexOf('@') == -1) || 
(document.form.email.value.indexOf('.') == -1)) {
missinginfo += "\n     -  Email Address";
}

if(document.form.comments.value == "") {
missinginfo += "\n     -  Enquiry";
}

if (missinginfo != "") {
missinginfo ="You failed to fill in your:\n" +
missinginfo + "\n\nThis information is required.";
alert(missinginfo);
return false;
}
else return true;
}