function checkFFields() {
missinginfo = "";
if (document.form.NAME.value == "") {
missinginfo += "\n     -  NAME";
}
if (document.form.BUSINESS_NAME.value == "") {
missinginfo += "\n     -  BUSINESS_NAME";
}
if (document.form.PHONE_NUMBER.value == "") {
missinginfo += "\n     -  PHONE_NUMBER";
}
if ((document.form.EMAIL.value == "") || 
(document.form.EMAIL.value.indexOf('@') == -1) || 
(document.form.EMAIL.value.indexOf('.') == -1)) {
missinginfo += "\n     -  EMAIL";
}
if (document.form.ENQUIRY.value == "") {
missinginfo += "\n     -  ENQUIRY";
}

if (missinginfo != "") {
missinginfo ="_____________________________\n" +
"\nPlease fill in the following fields:\n" +
missinginfo + "\n_____________________________" +
"\n\nThen click on submit enquiry again.\n";
alert(missinginfo);
return false;
}
else return true;
}