function createRequestObject(){
	var request_o;
	if (window.XMLHttpRequest) {
		request_o = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		request_o = new ActiveXObject("Microsoft.XMLHTTP");
	}
	return request_o;
}

var http = createRequestObject(); 

function get_prices(){
	http.open('get', 'include/suggested_cruises_prices.php?action=ajax&F_product=' 
		+ document.prices.F_product.value + '&F_base=' + document.prices.F_base.value + '&F_origin=' + document.prices.F_origin.value 
		+ '&F_languageid=' + document.prices.F_languageid.value + '&F_duration=' + document.prices.F_duration.value + '&F_start_base=' 
		+ document.prices.F_start_base.value + '&F_date=' + document.prices.start.value);
	http.onreadystatechange = handle_prices; 
	http.send(null);
}
	
function handle_prices(){
	if(http.readyState == 4){
		var response = http.responseText;
		document.getElementById('region_cruise_boats').innerHTML = response;
	}
}