function country_ok() {
	if (document.getElementById('resort').hasChildNodes()) while (document.getElementById('resort').childNodes.length >= 2) document.getElementById('resort').removeChild(document.getElementById('resort').lastChild);       
	    
	if (document.getElementById('country').selectedIndex!=0) document.getElementById('resort').removeAttribute('disabled')
	else document.getElementById('resort').setAttribute('disabled','true');
	for (i=0;i<tour.length;i++) {
		if (tour[i].country==document.getElementById('country').options[document.getElementById('country').selectedIndex].innerHTML) {
			opt = document.createElement('option');
			opt.setAttribute('value',tour[i].resort);
			opt.innerHTML = tour[i].resort;			
			document.getElementById('resort').appendChild(opt);			
		}
	}
}

function country_oka() {
	if (document.getElementById('resort').hasChildNodes()) 
		while (document.getElementById('resort').childNodes.length >= 1) 
			document.getElementById('resort').removeChild(document.getElementById('resort').lastChild);       
			
	for (i=0;i<tour.length;i++) {
		if (tour[i].country==document.getElementById('country').options[document.getElementById('country').selectedIndex].innerHTML) {
			opt = document.createElement('option');
			opt.setAttribute('value',tour[i].resort);
			opt.innerHTML = tour[i].resort;			
			document.getElementById('resort').appendChild(opt);			
		}
	}
}