var div_handle;

function createObject() {
		var tipo_richiesta;
		var browser = navigator.appName;
		if(browser == "Microsoft Internet Explorer"){
		tipo_richiesta = new ActiveXObject("Microsoft.XMLHTTP");
		}else{
		tipo_richiesta = new XMLHttpRequest();
		}
		return tipo_richiesta;
		}
		
		var http = createObject();
		
		function controlla(valore,div) {
		// add image progress
		div_handle = div;
		var par = window.document;
		var images = par.getElementById(div_handle);
		var new_div = par.createElement('div');
		var new_img = par.createElement('img');
		new_img.src = 'http://www.vocidelsud.com/site/images/loading.gif';
		new_img.width="150";
		new_div.appendChild(new_img);
		images.appendChild(new_div);
		http.open('get', valore);
		http.onreadystatechange = handleResponse;
		http.send(null);
		}
					
		function handleResponse() {
		if(http.readyState == 4){
		var response = http.responseText;
		document.getElementById(div_handle).innerHTML = response;
		}
		}