document.write('<script language="javascript" type="text/javascript" src="js/json2.js"></script>');

var cgipaddress = document.location.hostname;
var g_cgiport = 80;
var initialA;
if(cgipaddress == "")
{
	//cgipaddress = "10.10.38.251";
	cgipaddress = "10.10.32.115";
	initialA = "http://" + cgipaddress + ":" + g_cgiport + "/cgi-bin/";
}
else
{
	initialA = "/cgi-bin/";
}

function GetObject()
{
    var xmlHttp = false;
    if (window.XMLHttpRequest) { //非IE
        xmlHttp = new XMLHttpRequest();
    } else if (window.ActiveXObject) {//IE
        try {
            xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (e) {
                alertUpdateBrowser();
            }
        }
    }
    return xmlHttp;
}

function Communicate(cmdid, cmddata ,callback)
{
    var xmlHttp = GetObject();
    if (xmlHttp != false) {
        cmdid = initialA + cmdid + ".cgi";
        xmlHttp.onreadystatechange = callback;
        xmlHttp.open("POST", cmdid, true);
        xmlHttp.send(JSON.stringify(cmddata));
    } else {
        alertUpdateBrowser();
    }
}
function alertUpdateBrowser() {
    alert("AJAX needed,please update your browser!");
}

function CheckResponse()
{
	if ( null == this ) {
		return "";
	}
	if(this.readyState == 4)
	{
		var result;
		try
		{
            if (this.status == 200)
                result = JSON.parse(this.responseText);
            else{
                throw new Error("server error!code:" + this.status);
            }
		}
		catch(e)
		{
			// throw new Error("Failed to parse JSON received from server!");
		}
		if(result == null)
		{
			throw new Error("No response from the device.");
		}
		else if(result.Ret == -1)
		{
			throw new Error("No Permission");
		}
		return result;
	}
	return "";
}

function getErrorStr(nError)
{
	var strError;
	switch(nError)
	{
		case 101:
		strError = "System is busy";
		break;
		default:
		strError= "Unknown Error";
		break;
	}
	
	return strError;
}

var cloneObj = function (obj) {  
    var newObj = {};  
    if (obj instanceof Array) {  
        newObj = [];  
    }  
    for (var key in obj) {  
        var val = obj[key]; 
        if(typeof val === 'object' && val != null ) {
			newObj[key] = cloneObj(val);
		}else{
			newObj[key] =  val;
		} 
    }
    return newObj;  
}