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

var http = createRequestObject();

function openword(id) {
	var poststr = "parola=" +  id;
	http.open('get', 'rpc.php?action=cambioparola&'+poststr); 
	http.onreadystatechange = handleResponse; 
	http.send(null); 
}

function risultati(obj) {
	var poststr = "categoria=" +  document.getElementById("categoria").value;
	http.open('get', 'rpc.php?action=risultati&'+poststr); 
	http.onreadystatechange = handleResponse; 
	http.send(null); 
}

function handleResponse() { 
    if(http.readyState == 4){ 
        var response = http.responseText; 
        var update = new Array(); 
        if(response.indexOf('|' != -1)) { 
            update = response.split('|'); 
			//alert(update[1]);
            document.getElementById(update[0]).innerHTML = update[1]; 
        } 
    } 
}