function onregister() {
	var errors = 0;

	if (document.getElementById("date").options.selectedIndex == 0) {
		errors++;

	} //if...

	var title 	= document.getElementById("title").value;
	var name 	= document.getElementById("name").value;
	var surname = document.getElementById("surname").value;
	var phone 	= document.getElementById("phone").value;
	var fax 	= document.getElementById("fax").value;
	var email 	= document.getElementById("email").value;

	var organization = document.getElementById("organization").value;
	var address 	 = document.getElementById("address").value;
	var city 		 = document.getElementById("city").value;
	var country 	 = document.getElementById("country").value;
	var pcode 		 = document.getElementById("pcode").value;

	if (title == "") errors++;
	if (name == "") errors++;
	if (surname == "") errors++;
	if (phone == "") errors++;
	if (fax == "") errors++;
	if (email == "") errors++;

	if (organization == "") errors++;
	if (address == "") errors++;
	if (city == "") errors++;
	if (country == "") errors++;
	if (pcode == "") errors++;

	if (errors > 0) {
		alert("Some of the necessary fields were left blank")

	} else {
		document.getElementById("register_form").submit();

	} //else...

} //onbook()