function mostraCampi(nazione, regione, provincia, citta){

	if (provincia == undefined) {
		provincia = 'null';
	}
	
	if (regione == undefined) {
		regione = 'null';
	}
	
	if (citta == undefined) {
		citta = 'null';
	}
	
	if (nazione == 'IT') {
		ajaxpage("/richiesta.php?ACT=it&provincia="+provincia+"&regione="+regione+"&citta="+citta, "fields");
	} else {
		ajaxpage("/richiesta.php?citta="+citta, "fields");
	}
}


var loadedobjects="";
var rootdomain="http://"+window.location.hostname;

function ajaxpage(url, containerid){

	var page_request = false;
	if (window.XMLHttpRequest)
		page_request = new XMLHttpRequest()
	else if (window.ActiveXObject){
			try {
				page_request = new ActiveXObject("Msxml2.XMLHTTP");
			} 
			catch (e){
				try{
					page_request = new ActiveXObject("Microsoft.XMLHTTP");
				}
				catch (e){}
			}
		} else
			return false
		page_request.onreadystatechange=function(){
			loadpage(page_request, containerid)
		}
	page_request.open('GET', url, true)
	page_request.send(null)

}

function loadpage(page_request, containerid){
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
		document.getElementById(containerid).innerHTML=page_request.responseText;
}

function loadobjs(){
	if (!document.getElementById)
		return
	for (i=0; i<arguments.length; i++){
		var file=arguments[i]
		var fileref="";
		if (loadedobjects.indexOf(file)==-1){
			if (file.indexOf(".js")!=-1){
				fileref=document.createElement('script');
				fileref.setAttribute("type","text/javascript");
				fileref.setAttribute("src", file);
			} else if (file.indexOf(".css")!=-1){
				fileref=document.createElement("link");
				fileref.setAttribute("rel", "stylesheet");
				fileref.setAttribute("type", "text/css");
				fileref.setAttribute("href", file);
			}
		}
		if (fileref!=""){
			document.getElementsByTagName("head").item(0).appendChild(fileref);
			loadedobjects+=file+" ";
		}
	}
}