function updateprices() {
	var el1 = document.getElementById('country');
	var el2 = document.getElementById('cats');
	
	var divname = el1.value;
	
	if (el2.options[el2.selectedIndex].value != 9999) 
		divname = divname + 'T';
		
	var el3 = document.getElementById(divname);
	
	document.getElementById('WW').style.display = 'none';
	document.getElementById('WWT').style.display = 'none';
	document.getElementById('US').style.display = 'none';
	document.getElementById('UST').style.display = 'none';
	document.getElementById('CA').style.display = 'none';
	document.getElementById('CAT').style.display = 'none';
	document.getElementById('EU').style.display = 'none';
	document.getElementById('EUT').style.display = 'none';
	document.getElementById('UK').style.display = 'none';
	document.getElementById('UKT').style.display = 'none';
	document.getElementById('AU').style.display = 'none';
	document.getElementById('AUT').style.display = 'none';
	
	el3.style.display = 'block';
}

function changeregion(region) {
	var el = document.getElementById('country');
	el.value = region;
	updateprices();
}

function validate_form(theform) {

	var url = document.getElementById('url');
	if (url.value.substring(0,7) != 'http://' || url.value == 'http://') {
		alert('Please enter a valid URL beginning with http://');
		return false;
	}

	var el1 = document.getElementById('country');
	var el2 = document.getElementById('cats');
		
	var divname = el1.value;
	
	if (el2.options[el2.selectedIndex].value != 9999) 
		divname = divname + 'T';
			
	if (divname == 'WW')
		selradio = theform.WW_quantity;
	if (divname == 'WWT')
		selradio = theform.WWT_quantity;
	if (divname == 'US')
		selradio = theform.US_quantity;
	if (divname == 'UST')
		selradio = theform.UST_quantity;
	if (divname == 'CA')
		selradio = theform.CA_quantity;
	if (divname == 'CAT')
		selradio = theform.CAT_quantity;
	if (divname == 'EU')
		selradio = theform.EU_quantity;
	if (divname == 'EUT')
		selradio = theform.EUT_quantity;
	if (divname == 'UK')
		selradio = theform.UK_quantity;
	if (divname == 'UKT')
		selradio = theform.UKT_quantity;
	if (divname == 'AU')
		selradio = theform.AU_quantity;
	if (divname == 'AUT')
		selradio = theform.AUT_quantity;
	
	found = 0;
	for (i = 0; i < selradio.length; i++) {
		if (selradio[i].checked)
			found = 1;
	}
	
	if (found == 1) return true;
	
	alert('Please choose a visitor package before continuing');
	
	return false;

}