function assignGlobals() {
    // Assign Globals
    
    GLOBAL.userList  = new Array();
    GLOBAL.lastCheck = -1; 
    GLOBAL.xreqMsg;
    GLOBAL.xreqMsgActive = false;
    GLOBAL.xreqSubmit;
    GLOBAL.xreqSubmitActive = false;
    GLOBAL.xreqDeact;
}   
//----------------------------------------------------------

function reqMsgs() { 
    // request any new messages and users from server. 
 
    if (GLOBAL.xreqMsgActive) { return; } 
 
    if (GLOBAL.xreqSubmitActive) { 
        setTimeout(reqMsgs, 1000); 
        return; 
    } 
 
    GLOBAL.xreqMsgActive = true; 
 
    if ( !(GLOBAL.xreqMsg = createXreq()) ) { 
        alert("Problem with AJAX object."); 
        return; 
    } 
 
    GLOBAL.xreqMsg.open( 
        "POST", 
        "/poisedsolutions/chatmsgs", 
        true); 
 
    GLOBAL.xreqMsg.setRequestHeader( 
        "Content-type", 
        "application/x-www-form-urlencoded"); 
 
    GLOBAL.xreqMsg.onreadystatechange = reqMsgsCallback; 
 
    var postStr = 
        "lastCheck=" + encodeURI(GLOBAL.lastCheck); 
 
    GLOBAL.xreqMsg.send(postStr); 
} 
//---------------------------------------------------------- 
 
function reqMsgsCallback() { 
    // Call back for reqMsgs 
 
    if (GLOBAL.xreqMsg.readyState == 4) {
        if (GLOBAL.xreqMsg.status == 200) {
            updateMsgUser(GLOBAL.xreqMsg.responseText);
            GLOBAL.xreqMsgActive = false;
            setTimeout(reqMsgs, 1000);
        }
        else {
            alert("Problem getting messages: " +
                GLOBAL.xreqMsg.status);
            GLOBAL.xreqMsgActive = false;
        }
    }

}
//----------------------------------------------------------

function updateMsgUser(data) {
    // Update Messages and User List

    if (data == "error\n" || data == "no update\n") {
        return;
    }

    data = data.replace(/\r/g, '');

    eval(data);

    // Add Messages
    if (msgChangedIn) {
        msgEle = document.getElementById('msg');

        for (var k = 0; k < msgIn.length; ++k) {
            var line = "";

            line  = authorIn[k] + " : ";

            msgInLst = msgIn[k].split("<br>");

        return;
    }

    data = data.replace(/\r/g, '');

    eval(data);

    // Add Messages
    if (msgChangedIn) {
        msgEle = document.getElementById('msg');

        for (var k = 0; k < msgIn.length; ++k) {
            var line = "";

            line  = authorIn[k] + " : ";

            msgInLst = msgIn[k].split("<br>");

            for (var c = 0; c < msgInLst.length; ++c) {
                line += msgInLst[c];

                var lineTxt = document.createTextNode(line);

                msgEle.appendChild(lineTxt);

                var brEle = document.createElement("br");

                msgEle.appendChild(brEle);

                line = "";
            }
        }
    }

    // Update User List
    if (userChangedIn) {
        userEle = document.getElementById('user');

        userEle.innerHTML = "";
        for (var k = 0; k < userIn.length; ++k) {
            var line = "";

            line = userIn[k];
            var lineTxt = document.createTextNode(line);

            userEle.appendChild(lineTxt);

            var brEle = document.createElement("br");

            userEle.appendChild(brEle);
        }
    }

    // set last check time
    GLOBAL.lastCheck = lastCheckIn;
}
//----------------------------------------------------------

function createXreq() {
    // Create an X Req
    
    if (window.XMLHttpRequest) {
        var xreq = new XMLHttpRequest();
        xreq.overrideMimeType('text/html');
        return xreq;
    }
    else if (window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
    }
}
//----------------------------------------------------------