Collected online ajax chat.js file _javascript tips

var xmlHttp = false;
var ichatstate;
try {
XmlHttp = new ActiveXObject ("Msxml2.xmlhttp");
catch (e) {
try {
XmlHttp = new ActiveXObject ("Microsoft.XMLHTTP");
} catch (E2) {
XmlHttp = false;
}
}
if (!xmlhttp && typeof xmlhttprequest!= ' undefined ') {
XmlHttp = new XMLHttpRequest ();
}


function sendmsg () {
var msgbody = Escape (document.getElementById ("Msgbody"). Value);
var sendto = Escape (document.getElementById ("SendTo"). Value);
var senddata = "msgbody=" + msgbody + "&sendto=" + sendto;
Xmlhttp.open ("POST", ".. /ichat/sendmsg.asp ", false);
Xmlhttp.setrequestheader ("Content-type", "application/x-www-form-urlencoded");
Xmlhttp.onreadystatechange = function Sendok () {if (xmlhttp.readystate = 4) {}}
Xmlhttp.send (SendData);
document.getElementById ("Msgbody"). Value = "";
ShowMsg ();
}


function Hot_key () {

if (window.event.keycode==13 && window.event.ctrlKey && document.getElementById ("Msgbody"). Value!= " ") {sendmsg ();}

}



function Exitchat () {
var url = ".. /ichat/online.asp?action=exit&pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.send (NULL);
}

function Intochat () {
Window.ionline.location.href= ". /ichat/online.asp?action=intochat ";
ShowMsg ();
}

function Showonline () {
var url = ".. /ichat/online.asp?action=showonline&pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.send (NULL);
}

function ShowMsg () {
var url = ".. /ichat/getmsg.asp?pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.onreadystatechange = RELOADX;
Xmlhttp.send (NULL);
}

function Reloadx () {
if (xmlhttp.readystate = = 4) {
var response = Xmlhttp.responsetext;
document.getElementById ("mymsg"). InnerHTML = response;
document.getElementById ("mymsg"). Scrolltop=document.getelementbyid ("mymsg"). ScrollHeight;
SetTimeout ("ShowMsg ();", 10000);
}
}


function Saveset () {
var mycolor = document.getElementById ("MyColor"). Value;
var msgtotal = document.getElementById ("Msgtotal"). Value;
var mystate = document.getElementById ("MyState"). Value;
var allowmsg = document.getElementById ("allowmsg"). Value;
var closemsg;

if (document.getElementById ("closemsg"). Checked) {
Closemsg = document.getElementById ("closemsg"). Value;
}else{
Closemsg = "Off";
}
var senddata = "Mycolor=" + MyColor + "&msgtotal=" + msgtotal + "&mystate=" + mystate + "&allowmsg=" + allowms G + "&closemsg=" + closemsg;
Xmlhttp.open ("POST", ".. /ichat/chatset.asp ", false);
Xmlhttp.setrequestheader ("Content-type", "application/x-www-form-urlencoded");
Xmlhttp.onreadystatechange = function Sendok () {if (xmlhttp.readystate = 4) {
Alert (' Set has been saved ')
if (ichatstate== "open") {window.location.reload ();}
} }
Xmlhttp.send (SendData);

ShowMsg ();
document.getElementById (' Layer_ichatset '). style.display= ' None ';


}

function Openichat () {
ichatstate= "Open"
}

function Closeichat () {
Ichatstate= "Close"
}

function Showonlineuser () {
document.getElementById (' Layer_online '). style.display= ' block ';

var url = ".. /ichat/showonline.asp?pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.onreadystatechange = reloadX2;
Xmlhttp.send (NULL);

}

function reloadX2 () {
if (xmlhttp.readystate = = 4) {
var response = Xmlhttp.responsetext;
document.getElementById ("Onlineuser"). InnerHTML = response;
}
}

function Readset () {
document.getElementById (' Layer_ichatset '). style.display= ' block ';

var url = ".. /ichat/myset.asp?pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.onreadystatechange = Showset;
Xmlhttp.send (NULL);

}

function Showset () {
if (xmlhttp.readystate = = 4) {
var response = Xmlhttp.responsetext;
document.getElementById ("Setplan"). InnerHTML = response;
}
}

function Setsendto (username) {
if (username== "everyone") {
document.getElementById ("SendTo"). Value = ';
document.getElementById ("Talkwith"). InnerHTML = ' all Members ';
}else{
document.getElementById ("SendTo"). Value = Username;
document.getElementById ("Talkwith"). InnerHTML = Username;
}
var url = ".. /ichat/checkuser.asp?user= "+ Escape (username) +" &pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.onreadystatechange = showtips;
Xmlhttp.send (NULL);
}

function Showtips () {
if (xmlhttp.readystate = = 4) {
var response = Xmlhttp.responsetext;
document.getElementById ("userstate"). InnerHTML = response;
}
}

function Clearlog () {

if (Window.confirm ("Are you sure you want to erase all chat records?") ==true)
{
var url = ".. /ichat/clearlog.asp?pid= "+math.random ();
Xmlhttp.open ("Get", url, True);
Xmlhttp.send (NULL);
}

}


var ichatwinstate
Ichatwinstate= "Max";

function min ()
{
Ichatwinstate = (ichatwinstate== "Max")? " Min ": Max"

if (ichatwinstate== "min") {
document.getElementById (' Mbody '). style.display= ' None ';
document.getElementById (' Myichat '). height= parseint (document.getElementById (' ichat_title '). height);
document.getElementById (' Myichat '). Style.top = Document.body.clientheight-parseint (document.getElementById (" Ichat_title "). Style.height) + Document.body.scrollTop;
}else{
document.getElementById (' Mbody '). style.display= ' block ';
Iresize ();
}
}


function Closeit () {
document.getElementById (' Myichat '). style.display= ' None ';
}


function Iresize () {
if (ichatwinstate== "min") {
document.getElementById (' Myichat '). Style.top = Document.body.clientheight-parseint (document.getElementById (" Ichat_title "). Style.height) + document.body.scrolltop-1;
}else{
document.getElementById (' Myichat '). Style.top = Document.body.clientHeight + document.body.scrolltop-parseint ( document.getElementById ("Mbody"). Style.height)-85;
}
}



var ey=0,ex=0,lx=0,ly=0,candrg=false,thiso=null;
var x, Y,rw,rh;

function Dargit (O,E)//main functions
{
Thiso = O;
CANDRG = true;
if (!document.all)
{
LX = E.clientx; ly = E.clienty;
}
Else
{
LX = event.x; ly = Event.y;
}
if (document.all) thiso.setcapture ();
try{}
catch (e) {}
St (O);//before or after placement

}
Document.onmousemove=function (e)
{
if (!document.all) {x = e.clientx; y = e.clienty;} else{x = event.x; y = event.y;}
if (CANDRG)
{
var ofsx = X-LX;
Thiso.style.left = parseint (thiso.style.left) + ofsx;
LX = x;
var ofsy = y-ly;
Thiso.style.top = parseint (thiso.style.top) + Ofsy;
ly = y;

Status bar displays data
window.status=thiso.style.left+ "Left:top" +thiso.style.top+ "RH:RW" +rh+ "+" +RW;
}
}

Document.onmouseup=function ()
{
candrg=false;//drag variable set to False
try{}
catch (e) {}
if (document.all && thiso!= null)
{
IE, will be clear capture;
Thiso.releasecapture ();
Thiso = null;
}
}


Function St (o)
{

var p = O.parentnode;
if (P.lastchild!= o)
{
P.appendchild (o);
}
if (rh<=20 && rw>=160)
{
Candrg=false;

if (rw<180)
{
Set the closing area;//If you do not need to be able to comment out;
Alert ("Off");
P.removechild (o)
RemoveChild (this);

}
Else
{
window.status=rw+ "|" +RH;
if (P.firstchild = O) return;
P.insertbefore (o, p.firstchild);
}
}
}