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 sndReq(action) { 
    http.open('get', 'output.php?action='+action); 
    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('|'); 
            document.getElementById(update[0]).innerHTML = update[1]; 
        } 
    } 
}