function create_ist(){
	var re;
	var browser=navigator.appName;
	if (browser=="Microsoft Internet Explorer"){
		re=new ActiveXObject("Microsoft.XMLHTTP");
	} else re=new XMLHttpRequest();
	return re;
}

function aj_req(div_id, url_pag, met, par, type_inner, http_new) {
	
	inn_err = "<p>Errore script</p>";
	
	if (type_inner == 'sel') {
		inn = "<select><option value=\"0\">caricamento in corso...</option></select>";
		inn_err = "<select><option>ERRORE</option></select>";
	}
	
	else if (type_inner == 'loader') inn = "<img src='../immagini/loader.gif' />";
	else if (type_inner == 'loader_alt') inn = "<img src='../immagini/loader_alt.gif' />";
	else if (type_inner == 'loader_offerta') inn = "<img src='../immagini/loader_offerta.gif' />";
	else if (type_inner == 'loader_off_alt') inn = "<img src='../immagini/loader_offerta_alt.gif' />";
	
	else if (type_inner == 'loader_front') inn = "<img class='loader' src='immagini/loader.gif' />";
	
	else inn = "<p>caricamento in corso...</p>";
	
	
	var url=url_pag+"?" + par
	http_new.open(met, url, true)
	document.getElementById(div_id).innerHTML=inn;
	http_new.onreadystatechange=function(){
		if (http_new.readyState==4 || http_new.readyState=="complete"){
			if (http_new.status == 200){
				var t = http_new.responseText;
				t = execJS(t);
				document.getElementById(div_id).innerHTML=t;
			} 
			else {
				document.getElementById(div_id).innerHTML=inn_err;
			}
		}
	}
	http_new.send(null);
}




function execJS(t) {
    var p1 = 0, p2 = 0, p3 = 0, p4 = 0;
    p1 = t.indexOf("<" + "script", 0);
    if(p1 == -1) return t;
    
    p2 = t.indexOf(">", p1 + 7) + 1;
    p3 = t.indexOf("<" + "/script>", p2);
    p4 = p3 + 9;
    
    var c = t.substring(p2, p3);
    var s = document.createElement("script");
    s.type = "text/javascript";
    s.text = c;
    document.getElementsByTagName("head")[0].appendChild(s);
    
    t = t.substring(0, p1) + t.substr(p4);
    return execJS(t);
}