function getZona(zona){
	url = "lib/get_zona.php?zona="+zona;
	incarcaURL(url, "procZona");
}
var cerere;
//incarca URL-ul care raspunde pentru cerere
function incarcaURL(url, fct){
	if(window.XMLHttpRequest){
		cerere = new XMLHttpRequest();
		cerere.onreadystatechange = eval(fct);
		cerere.open("GET", url, true);
		cerere.send(null);
	}
	else if(window.ActiveXObject)
	{
		cerere = new ActiveXObject("Msxm12.XMLHTTP");
		if(cerere){
			cerere.onreadystatechange = eval(fct);
			cerere.open("GET", url, true);
			cerere.send();
		}
	}
}
function procZona(){
		if(cerere.readyState == 4){		
		if(cerere.status == 200){			
			var raspuns = cerere.responseText;
			document.getElementById("zona").innerHTML = raspuns;
		}
		else{
			alert("A aparut o problema la transferul datelor:\n" + cerere.statusText);
		}	
	}
}