var request = null;
var response="undefined";
var devCfg="undefined";
var sensorCfg="undefined";
var error="Error";
var g_szCompressType = "mpeg4";
var g_szRotate = "None";
var requestTimeout=30000;
var updateJPG=1;
var alertRequest = 1;

function CreateRequest(){  
	request = null;
    try {
      request = new XMLHttpRequest();
    } catch (trymicrosoft) {
      try {
        request = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (othermicrosoft) {
        try {
          request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (failed) {
          request = false;
        }
      }
    }

    if (!request)
        alert("Error initializing XMLHttpRequest!");
    return request;
}

function hex2rgb(hex)
{
var r = (0xFF0000 & hex) >> 16;
var g = (0x00FF00 & hex) >> 8;
var b = (0x0000FF & hex);
return "rgb(" + r + "," + g + "," + b + ")";
}

function requestAbort(){
  alert(loadLangString("L_ServerNoResponse",false));
	request.abort();
}

function HttpRequest(method, cgistr, cb, async, timeout){ 
    var tempstring = eval("'"+cgistr+"'");
    var timer;
    //alert( method+' '+tempstring );
    request=CreateRequest();
    if ( request === null) { // Sorry, no Ajax
        alert("Ajax not available");
        return null;
    }
    request.open(method, tempstring, async); //synchronous
    //request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    if(timeout > 0)
    {//alert(timeout);
    	timer = setTimeout("requestAbort()",timeout);
    }
    
    if(async)
    {
        request.onreadystatechange = function(){  
            if (request.readyState == 4)
            {
            	 if(timeout > 0)
            		clearTimeout(timer);
            	
               if (request.status == 200){       
                   response = request.responseText;
                   if(cb) cb();
               }
               else if (request.status == 404){

                if(alertRequest)
                {
                  alert("Request URL does not exist");
                }
                alertRequest = 1;
	             }else if(request.status == 0){
	                 //alert("Request abort");
	             }

               else {
                   //alert("Error: status code is " + request.status);
               }
            }
        }
    }
    if(method=="POST")
    {
    	//request.setRequestHeader("Content-Type", "multipart/form-data");
        request.send(cgistr);
    }
    else
    {
        request.setRequestHeader( "If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT" );
        request.send(null);
    }
    if(async) return;

    if (request.status != 200)
    {
    	  if(timeout > 0){
    	  	//alert("clear timeout error");
          clearTimeout(timer);}
        return error;
    }else{
    	  if(timeout > 0){
    	  	//alert("clear timeout");    	  	
          clearTimeout(timer);}
        return request.responseText;
    }

}
function SendCGICMD(){ 
  if(arguments[0]!=null)
  {
    setLastCGICMD(arguments[0]);
  }
    return HttpRequest("GET", arguments[0], arguments[1]?arguments[1]:null, arguments[2]?arguments[2]:false, arguments[3]?arguments[3]:requestTimeout);
}

/*
* GetDeviceInfo(catalog, level, cb)
*     catalog(must): cgi command
*     level(optional): admin/operator/view
*     cb(optional): call back function
*/
function GetDeviceInfo(){  
  var level = "admin";

  if(arguments[1])
  {
    level = arguments[1];
  }

  var cgi = eval("'/cgi-bin/"+level+"/param?action=list&group="+arguments[0]+"'");

  devCfg=HttpRequest("GET", cgi, null, false, requestTimeout);
  if(arguments[2])
  {
    arguments[2]();
  }
}

function GetSensorInfo(){  
  var level = "admin";
  
  if(arguments[1])
  {
    level = arguments[1];
  }
  var cgi = eval("'/cgi-bin/"+level+"/param_option?ImageSource="+arguments[0]+"'");
  sensorCfg=HttpRequest("GET", cgi, null, false, requestTimeout);   
  if(arguments[2])
  {
    arguments[2]();		
  }
}

function GetQueryVariable(variable){
    if(devCfg==undefined)
    {
    	vars="";
        return vars
    }
    var vars = devCfg.split(variable+"="); 
    if(vars[1]==undefined)
    {
        vars="";
        return vars
    }
    var pair = vars[1].split("\n"); 
    return pair[0];
}

function GetQueryVariableEx2(variable,cfg){
    //alert(devCfg);
    //alert(variable);
    if(cfg==undefined)
    {
    	vars="";
        return vars
    }
    var vars = cfg.split(variable+"="); 
    if(vars[1]==undefined)
    {
        //alert("Error: Undefined!");
        vars="";
        return vars
    }
    var pair = vars[1].split("\n"); 
    //alert(pair[0]);

    return pair[0];
}
function doCheckEmpty(strTxt)
{
	if(get_Length(strTxt) <= 0){
		return false;
	}
	if(chk_Empty(strTxt)){
		return false;
	}
	return true;
}

function GetFWUpgradeStatus(){
	var rsp=HttpRequest("GET", "/cgi-bin/admin/firmwareupgrade?action=progress", null, false, requestTimeout);
	var progress = rsp.split("Progress="); 
	var vars = progress[1].split("%"); 
	//alert(vars[0]);
    return (vars[0]);
}
function replaceEscapes(strTxt){
    return(escape(strTxt));
}

function saveData(strPath, strData) {
   if(strData=="") strData="None";
   var cgi=eval("'/cgi-bin/operator/filewrite?SAVE.filePath="+strPath+"'");
   cgi+=eval("'&SAVE.fileData="+strData+"'");
   SendCGICMD(cgi);
}

function readData(strPath){         
    var cgi=eval("'/cgi-bin/operator/fileread?READ.filePath="+strPath+"'");
    var data=HttpRequest("GET", cgi, null, false, requestTimeout);
    if(data=="None") data="";
    return (data);
}
function Clear_Seq(strType, strValue)
{
    var cgi=eval("'/cgi-bin/operator/seqclear?Clear."+strType+"="+strValue+"'");
    UpdateParam(cgi);
}
function setCookies(name,value)
{
  var Days = 30; //此 cookie ?被保存 30 天
  var exp  = new Date();    //new Date("December 31, 9998");
  exp.setTime(exp.getTime() + Days*24*60*60*1000);
  document.cookie = name + "="+ escape(value) +";expires="+ exp.toGMTString();
}
function getCookies(name)
{
  var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
  if(arr != null) return unescape(arr[2]); return null;
}
function delCookies(name)
{
  var exp = new Date();
  exp.setTime(exp.getTime() - 1);
  var cval=getCookie(name);
  if(cval!=null) document.cookie=name +"="+cval+";expires="+exp.toGMTString();
} 
function getVideoFmt()
{ 
	fmt=getCookies("VideoIdx");
	if(fmt==null)
	{
	    setCookies("VideoIdx","0");
	    return "0";
	}
	if(fmt!="0" && fmt!="1" && fmt!="2" && fmt!="3")
	{
	    setCookies("VideoIdx","0");
	    return "0";
	}
	if(GetQueryVariable("Image.VideoOut.Enabled")=="on" && GetQueryVariable("Image.VideoOut.Index")==fmt)
	{
		if(fmt=="0")
			fmt="1";
		else if(fmt=="1" || fmt=="2")
			fmt="0";
		setCookies("VideoIdx",fmt);
	}
	return fmt;
}
function setVideoFmt(fmt)
{ 
	if(fmt!="0" && fmt!="1" && fmt!="2" && fmt!="3")
	    return;
	setCookies("VideoIdx",fmt);
	g_szCompressType=fmt;
}

function getProfileFmt()
{
	fmt=getCookies("ProfileIdx");
	if(fmt==null)
	{
    setCookies("ProfileIdx","0");
    return "0";
	}
	
	if(GetQueryVariable("Image.VideoOut.Enabled")=="on" && GetQueryVariable("Image.VideoOut.Index")==fmt)
	{
		if(fmt<3)
		{
		  fmt++;
		}else if(fmt==3){
		  fmt=0;
		}
		setCookies("ProfileIdx",fmt);
	}
	return fmt;
}

function setProfileFmt(stream)
{
  if(parseInt(stream,10)<0) 
  {
    return;
  }
  setCookies("ProfileIdx",stream);
}

function getImageRotate()
{ 
	rotate=getCookies(g_szRotate);
	
	if(rotate==null)
	{
	    setCookies(g_szRotate,"None");
	    return "None";
	}
	if(rotate!="None" && rotate!="Mirror" && rotate!="Flip" && rotate!="MirrorFlip")
	{
	    setCookies(g_szRotate,"None");
	    return "None";
	}
	return rotate;
}
function setImageRotate(rotate)
{ 
	if(rotate!="None" && rotate!="Mirror" && rotate!="Flip" && rotate!="MirrorFlip")
	    return;
	setCookies(g_szRotate,rotate);
	g_szRotate=rotate;
}

function setProtocol(protocol)
{ 
	setCookies("ProtocolType",protocol);
	g_szProtocolType=protocol;
}

function getProtocol()
{ 
	var protocol=getCookies("ProtocolType");
  if(protocol != "1" && protocol != "2" && protocol!= "3" && protocol!= "4"){
    protocol="3"; //set as HTTP
  }
	return protocol;
}
function setBufferEn(En)
{ 
	setCookies("Buffering",En);
	Buffer_Enable=En;
}
function getBufferEn()
{ 
	var buff=getCookies("Buffering");
	if(buff==null)
      buff="0"; //set as disable
	return buff;
}
function setViewSize(size)
{ 
	setCookies("ViewSize",size);
	VIEW_SIZE=size;
}
function getViewSize()
{ 
	var size=getCookies("ViewSize");
	if(size==null)
      size="1X"; //set as 1X
	return size;
}

var CGICMD="";

function setLastCGICMD(str)
{
  CGICMD += (str + "\n \n");
  if(CGICMD.length > 1000)
  {
    return;
  }
  setCookies("LastCGICMD",CGICMD);
}

function getLastCGICMD()
{
  var cgi = getCookies("LastCGICMD");
  if(cgi!=null)
  {
    return cgi;
  }else{
    return "empty";
  }
}

function ExtractString(str, start, end)
{
	var re1,re2;
	re1 = str.split(start);
	if(re1[1]==undefined)
		return re1;
	re2 = re1[1].split(end);
	return re2[0];

}

function ReplaceAll(strSource, strFind, strRepl) {
    var str5 = new String(strSource);
    while (str5.indexOf(strFind) != -1) {
          str5=str5.replace(strFind, strRepl);
    }
   return str5;
} 
var portCfg="";
function checkPortAssignment(type, curPort)
{
  var i = 0;
  var vport;
  var pArray = new Array(
  "General.System.HTTPPort",
  "Syslog.ServerPort",
  "General.Network.RTSP.Port",
  "General.Network.UPnP.NATTraversal.HTTPPort",
  "General.Network.UPnP.NATTraversal.HTTPSPort",
  "General.Network.UPnP.NATTraversal.RTSPPort",
  
  "General.Network.RTP.R0.AudioPort",
  "General.Network.RTP.R1.AudioPort",
  "General.Network.RTP.R2.AudioPort",
  "General.Network.RTP.R3.AudioPort",
  "General.Network.RTP.R4.AudioPort",
  "General.Network.RTP.R5.AudioPort",
  "General.Network.RTP.R6.AudioPort",
  "General.Network.RTP.R7.AudioPort",
  "General.Network.RTP.R8.AudioPort",
  "General.Network.RTP.R9.AudioPort",
  
  "General.Network.RTP.R0.VideoPort",
  "General.Network.RTP.R1.VideoPort",
  "General.Network.RTP.R2.VideoPort",
  "General.Network.RTP.R3.VideoPort",
  "General.Network.RTP.R4.VideoPort",
  "General.Network.RTP.R5.VideoPort",
  "General.Network.RTP.R6.VideoPort",
  "General.Network.RTP.R7.VideoPort",
  "General.Network.RTP.R8.VideoPort",
  "General.Network.RTP.R9.VideoPort"
  );

  var langAry = new Array(
  "Please check HTTP Port",
  "Please check System Log Port",
  "Please check RTSP Port",

  "Please check HTTP Port",
  "Please check HTTPS Port",
  "Please check RTSP Port",

  "Please check Profile 1 RTSP Multicast Audio Port",
  "Please check Profile 2 RTSP Multicast Audio Port",
  "Please check Profile 3 RTSP Multicast Audio Port",
  "Please check Profile 4 RTSP Multicast Audio Port",
  "Please check Profile 5 RTSP Multicast Audio Port",
  "Please check Profile 6 RTSP Multicast Audio Port",
  "Please check Profile 7 RTSP Multicast Audio Port",
  "Please check Profile 8 RTSP Multicast Audio Port",
  "Please check Profile 9 RTSP Multicast Audio Port",
  "Please check Profile 10 RTSP Multicast Audio Port",
  
  "Please check Profile 1 RTSP Multicast video Port",
  "Please check Profile 2 RTSP Multicast video Port",
  "Please check Profile 3 RTSP Multicast video Port",
  "Please check Profile 4 RTSP Multicast video Port",
  "Please check Profile 5 RTSP Multicast video Port",
  "Please check Profile 6 RTSP Multicast video Port",
  "Please check Profile 7 RTSP Multicast video Port",
  "Please check Profile 8 RTSP Multicast video Port",
  "Please check Profile 9 RTSP Multicast video Port",
  "Please check Profile 10 RTSP Multicast video Port"
  );

  if(portCfg=="")
  {
    portCfg = SendCGICMD("/cgi-bin/operator/param?action=list&group=General.Network.RTSP&group=General.Network.RTP&group=General.Network.UPnP&group=General.System&group=Syslog.ServerPort")
  }

  for(i=0;i < pArray.length; i++)
  {
    if( type.indexOf("AudioPort") > 0 &&
        pArray[i].indexOf("AudioPort") > 0
    )
    {
      continue;
    }
    
    if( type.indexOf("VideoPort") > 0 &&
        pArray[i].indexOf("VideoPort") > 0
    )
    {
      continue;
    }
    if(type!=pArray[i])
    {
      vport=GetQueryVariableEx2(pArray[i], portCfg);
      if(vport==curPort)
      {
        alert(langAry[i]);
        return false;
      }

      if(pArray[i].indexOf("VideoPort") > 0 || pArray[i].indexOf("AudioPort") > 0)
      {
        if(parseInt(vport)+1 == curPort)
        {
          alert(langAry[i]);
          return false;
        }
      }
    }
  }

  return "OK";
}

function StyleCustomize(curframe)
{

}

function UpdateParam(){  
  if(arguments[0]!=null)
  {
    setLastCGICMD(arguments[0]);
  }
  
  var re = HttpRequest("GET", arguments[0], null, false, requestTimeout);
  if((re.search(/OK/g) >= 0)||arguments[1]==false)
  {
  	alert(loadLangString("L_ApplySuccess",false));
  	return true;
  }else{
  	alert(re);
  	return false;
  }
}

function StrExtend(element, length)
{
  var txtidx;
  if(element.length >= length)
  {
    element=element.substr(0,length-4);
    element+='...';
  }
  for(txtidx=element.length;txtidx<length;txtidx++)
  {
	  element+='&nbsp;';
  }
  return element;
}
var snapshotReady = 1;
var ImgObj;
var imageViewArea = 0;
function updateImg(obj,w,h)
{
  if(updateJPG)
  {
    if(snapshotReady == 1)
    {
      ImgObj=obj;
      if(imageViewArea!=0)
      {
        EID(obj).src = 'http://' + location.hostname + ':' + location.port + '/cgi-bin/view/image?pro_'+imageViewArea;
      }else{
        EID(obj).src = 'http://' + location.hostname + ':' + location.port + '/cgi-bin/view/image?res='+w+'x'+h+'&'+(new Date()).getTime();
      }
      snapshotReady = 0;
    }
    setTimeout(function(){updateImg(obj,w,h);} , 500);
  	EID(obj).onload=SanpshotEvent;
  	EID(obj).onerror=SanpshotEvent;
  }
}

function SanpshotEvent()
{
  snapshotReady = 1;
  EID(ImgObj).onload=SanpshotEvent;
  EID(ImgObj).onerror=SanpshotEvent;
}


function EID(strId){return document.getElementById(strId)}
function EName(strName){return document.getElementsByName(strName)}
function EShow(strId,show){EID(strId).style.display=show;}
function EVisible(strId,visible){EID(strId).style.visibility=visible;}

function SetSlider(item,val){EID(item).value = val;}

function SetNoneName(item,val)
{
  if(val == "None" || val == "none")
  {
    EID(item).value = "";
  }else{
    EID(item).value = val;
  }
}

function CheckNoneName(val)
{
  if(EID(val).value == "")
  {
    return "=none";
  }else{
    return "=" + EID(val).value;
  }
}

function ChkDisplay(item,support)
{
  if(support == "yes" || support == "Yes")
  {
    EShow(item,"");
  }else{
    EShow(item,"none");
  }
}

function OpenHelp()
{
  var href0 = parent.document.getElementById("setPage").src;
  var popW,popAry,idx=0,i;
  idx=href0.indexOf("/");

  popAry = href0.split("/");
  
  for(i=0; i< popAry.length;i++)
  {
    if(popAry[i].indexOf(".htm")>0)
    {
      popW = popAry[i];
      break;
    }
  }
  popW = "help/help_"+popW;
  window.open(popW,'sb_mt','width=790,height=580,resizable=1,scrollbars=1,status=1');
}

function checkValidChar(str)
{
  var reg = /[+]/g;
  if(str != "")
  {
    var val = reg.test(str);
    if(val)
    {
      alert("The character \"+\" is not allowed."); 
    }
    return val;
  }else{
    return false;
  }  
}

function checkValidPath(str)
{
  var reg = /[+\\\/\:\*\?\"\<\>\|]/g;
  if(str != "")
  {
    var val = reg.test(str);
    if(val)
    {
      alert("The character + , \\ , / , : , * , ? , \" , \< , \> , or | is not allowed."); 
    }
    return val;
  }else{
    return false;
  }  
}

function getWinFeature(winWidth,winHeight)
{
  var PosX = (screen.width-winWidth)/2; 
  var PosY = (screen.height-winHeight)/2; 
  var resize = arguments[2]==undefined?0:arguments[2];
  var scrollbar = arguments[3]==undefined?0:arguments[3];
  var status = arguments[4]==undefined?0:arguments[4];
  var feature = eval("'width="+winWidth+"px,height="+winHeight+"px,top="+PosY+",left="+PosX+
                     ",resizable=1"+//for https recommand
                     ",scrollbars="+scrollbar+
                     ",status="+status+"'"); 
  return feature;
}