function checkFields() {
missinginfo = "";
if ((document.form.event_type.value == "") || 
	 (document.form.event_type.value == "0")){
missinginfo += "\n     -  Event Type";
}
if ((document.form.Day.value == "") || 
(document.form.Day.value == "0")) {
missinginfo += "\n     -  Preferred start date Day";
}
if ((document.form.Month.value == "") || 
	 (document.form.Month.value == "0")){
missinginfo += "\n     -  Preferred start date Month";
}
if ((document.form.Year.value == "") || 
	 (document.form.Year.value == "0")){
missinginfo += "\n     -  Preferred start date Year";
}
if (document.form.Duration.value == "") {
missinginfo += "\n     -  Duration";
}
if (document.form.number_of_people.value == "") {
missinginfo += "\n     -  Number of people";
}
if (document.form.Forename.value == "") {
missinginfo += "\n     -  Forename";
}
if (document.form.Country.value == "") {
missinginfo += "\n     -  Country";
}
if ((document.form.email.value == "") || 
(document.form.email.value.indexOf('@') == -1) || 
(document.form.email.value.indexOf('.') == -1)) {
missinginfo += "\n     -  Email address";
}
if (document.form.Telephone.value == "") {
missinginfo += "\n     -  Telephone";
}
if (document.form.checkcode.value == "") {
missinginfo += "\n     -  Empty security code";
}
if (missinginfo != "") {
missinginfo ="_____________________________\n" +
"You failed to correctly fill in your:\n" +
missinginfo + "\n_____________________________" +
"\nPlease re-enter and submit again!";
alert(missinginfo);
return false;
}
else return true;
}