/*****************************************************************
** Common JavaScript AJAX Library
*****************************************************************/

/* Common values for the ReadyState of the XMLHttpRequest object */
var READYSTATE_UNINITIALIZED = 0;
var READYSTATE_LOADING = 1;
var READYSTATE_LOADED = 2;
var READYSTATE_INTERACTIVE = 3;
var READYSTATE_COMPLETE = 4;

/* Common values for HTTP status codes */
var HTTPSTATUS_OK = 200;

function newConnection() {
    var xmlHttp;
    try {
        // Firefox, Opera 8.0+, Safari
        xmlHttp = new XMLHttpRequest();
        //alert("Firefox!");
    }
    catch (e) {    // Internet Explorer
        try {
            xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
            //alert("i.e1!");
        }
        catch (e) {
            try {
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                //alert("i.e2!");
            }
            catch (e) {
                alert("Your browser does not support AJAX!");
                return false;
            }
        }
    }
    return xmlHttp;
}

function clickBtn(btn, e) {
    //alert("here" + btn);

    // process only the Enter key
    //var e = window.event;
    if (e == null) {
        e = window.event;
    }
    if (e.keyCode == 13) {
        var theBtn = document.getElementById(btn);
        // cancel the default submit 
        e.returnValue = false;
        e.cancel = true;

        // submit the form by programmatically clicking the specified button
        //alert("The btn is " + theBtn.id);
        //window.location = document.getElementById(btn).href;
        document.getElementById(btn).click();
        //document.getElementById(btn).createEvent("click");
    }
}