function WebCall_GetCookieValX(offset) 
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function WebCall_GetCookieX(name) 
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) 
	{
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) return WebCall_GetCookieValX (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break; 
	}
	return null;
}

function WebCall_SetCookieX(name, value) 
{
	var argv = WebCall_SetCookieX.arguments;
	var argc = WebCall_SetCookieX.arguments.length;
	var expires = (2 < argc) ? argv[2] : null;
	var path = (3 < argc) ? argv[3] : null;
	var domain = (4 < argc) ? argv[4] : null;
	var secure = (5 < argc) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
	                 ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	                 ((path == null) ? "" : ("; path=" + path)) +
	                 ((domain == null) ? "" : ("; domain=" + domain)) +
	                 ((secure == true) ? "; secure" : "");
}

//** end of Cookie 

// get a random string
function WebCall_GetRndString(len)
{
    var ret = "";
    while(ret.length < len){
        var i = Math.random();
        var ii = (122 - 97 + 1) * i + 97;
        ii = parseInt(ii);
        ret += String.fromCharCode(ii);
    }
	return ret;
}

function GetClientID()
{
    var cid = WebCall_GetCookieX("WebTongClientID");
    if(!cid){
       cid =  WebCall_GetRndString(16);
       var expdate = new Date();
       expdate.setTime(expdate.getTime() +  (24 * 60 * 60 * 1000 * 365)); //expiry one years later
       WebCall_SetCookieX ("WebTongClientID",cid,expdate,"/");
    }
    return cid;
}

function GetVisitTimes()
{
	var num = WebCall_GetCookieX("WebTongVisitTimes");
	if(num){
		num = parseInt(num);
		if(/^[0-9]+$/.test(num) == false) num = 0;
	    var NoCountVT = WebCall_GetCookieX("NoCountVT");
		if(NoCountVT == null){
			num++;
			WebCall_SetCookieX ("NoCountVT","yes",null,"/"); //if user close the browser,the counter restart
		}
	}else{
		num = 1;
	}
    var expdate = new Date();
    expdate.setTime(expdate.getTime() +  (24 * 60 * 60 * 1000 * 365)); //expiry one years later
    WebCall_SetCookieX ("WebTongVisitTimes",num,expdate,"/");
    return num;
}

function webcall_getCharset(){
	var wc_charset = document.charset.toLowerCase();
	if(wc_charset == 'gbk') wc_charset = 'gb2312';
	else if(wc_charset == 'gb2312') wc_charset = 'gb2312';
	else wc_charset = "UTF-8";
	return wc_charset;
}

var fromr = "";
try{
	top.document.referrer;
}catch(e){}
fromr = (fromr == "") ? document.referrer : fromr;
var wc_charset = webcall_getCharset();
var wc_visittimes = GetVisitTimes();
var QueryString = '&domain='+ window.location.host +'&fromr=' + escape(fromr) + '&url=' + escape(document.URL) + '&screen=' + screen.width + 'x' + screen.height;
if(location.search.indexOf("isDebug=1") > -1) QueryString += "&isDebug=1";
var WebTongHome = "http://chat.51kehu.com/";
var cid = GetClientID();
var name = WebCall_GetCookieX('CokClientName');
if(name == null) name = "";
//if(wc_charset == "UTF-8") name = escape(name);
//prompt('',name);
var initUrl = WebTongHome + "Init/Init_2.aspx?cid=" + cid + "&SiteID=662&AutoHide=1&q=633595903376093750&VisitTimes="+ wc_visittimes +"&Charset="+ wc_charset + QueryString + "&name="+ name;
initUrl += "&rand=" + Math.random();
//prompt("",initUrl);
//alert(window.location.host);
document.writeln("<script language='javascript' src='"+ initUrl +"'></script>");