var xmlhttp = null;
var g_ajaxurl = "/wh/ms.ashx";
var g_ajaxcallback = null;
function ajaxpost(cmd, data, callback) {
    if (window.XMLHttpRequest) {
        xmlhttp = new XMLHttpRequest();
    }

    if (xmlhttp == null) {
        return false;
    }

    g_ajaxcallback = callback;

    xmlhttp.open('POST', g_ajaxurl, true);
    var str = "cmd=" + cmd;
    str += "&" + data;

    xmlhttp.onreadystatechange = checkresult;
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlhttp.setRequestHeader("Content-length", str.length);
    xmlhttp.setRequestHeader("Connection", "close");
    xmlhttp.send(str);

    return true;
}

function checkresult() {
    if (xmlhttp != null && xmlhttp.readyState == 4) { 
        if (xmlhttp.status == 200) {            
            result = xmlhttp.responseText;
            if (g_ajaxcallback != null) g_ajaxcallback(result);
        } else {
            //alert('There was a problem with the request.');
        }
        xmlhttp = null;
    }
};

function view_instruction(wo, id) {
    var data = wo + "=" + id;
    ajaxpost("GetWOIS", data, function(msg) {
        var resultdiv = document.getElementById("div_inst");
        if (resultdiv != null) {
            resultdiv.innerHTML = msg;
        }
    });
}