var my_checked = "";
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 setCheckbox(cb_id,mainCat,subCat,goodness) {
    my_checked = document.getElementById(cb_id).checked;
    var params = "my_checked="+my_checked+"&cb_id="+cb_id+"&mainCat="+mainCat+"&subCat="+subCat+"&goodness="+goodness;
    //alert(params);
    http.open('POST', '/home/setsession',true);
    http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    http.setRequestHeader("Content-length", params.length);
    http.setRequestHeader("Connection", "close");

    http.onreadystatechange = handleResponsecb;
    http.send(params);
}

function handleResponsecb() {
    if(http.readyState == 4){
        var response = http.responseText;
        //document.getElementById('sess').innerHTML = response;
        
        //document.getElementById('boom').style.backgroundColor = "red";
    }
    else
    {
        //document.getElementById('sess').innerHTML = "<img src='/images/loading.gif'>";
    }
}