String.prototype.tr = function(){return this.replace(/(^\s*)|(\s*$)/g, "");};            
    var jsonrpc=null;
    var queryStr = "";

    /*returns width of browser window*/
    function getMW() {
        var w=window.innerWidth;
        if (w==null) w=document.body.clientWidth;
        return w;
    }
    
    /*returns height of browser window*/
    function getMH() {
        var h=window.innerHeight;	
        if (h==null) h=document.body.clientHeight;
        return h;
    }
    
  /*lCtrl object contains functions and states to process RPC login and switch to start.jsp page*/
  var lCtrl = {
   debugMode: false,
    /*anonymous mode*/
    modeA: false,
    initA: function(showRestoreDetails, qStr, sKey, usercid){
        this.usercid = usercid;
        this.modeA = true;
        this.modeASkey = sKey;
        this.init(showRestoreDetails, qStr, false);
    },
    /*initializates parameters and references to objects*/
    init: function(showRestoreDetails, qStr, uPassEnc){
        jsonrpc = new JSONRpcClient("jrpc2.jsp");
        if (!jsonrpc.lCtrl){
            //probably coockies are not enabled
            $("fooF").action="nocookie.jsp";
            $("fooF").submit();            
            return;
        }
        this.uPassEnc = uPassEnc;
        queryStr = qStr;
        //shows details of restoring process
        this.showRestoreDetails = showRestoreDetails;
        //flag indicates if we have login step or pasword changing step
        this.logOrPass = true;
        
        //ids of "forms" used in interface 
        this.frms= this.modeA ? ["infoTR", "restTR"] : ["chgPassTR", "loginTR", "restTR"];
        
        //ids of dom object required in interface
        var domObjts=this.modeA ? ["restTR","restDIV","infoTR","progressTR","restTR","restDIV","anErr","fooF"] : ["serviceSel","user","pass","chgUser","newPass2","newPass","fooF",
                      "progressTR","chgPassTR","loginTR","logBut","anErr","taskTxt","restTR","restDIV"];
        var notFound = "";
        
        //checking if all required objects exists on page and creates
        domObjts.each(function(o){
            var oo = $(o);
            if (!oo){
                notFound += "\"" + o + "\"; "
                allFound = false;
            } else {
                this[o] = oo;
            }
        }.bind(this));
        if (notFound==""){
            if (this.modeA){
                this.openA();
            } else {
                if (this.uPassEnc && this.getDObjVal("user").length > 0 && this.getDObjVal("pass").length > 0){
                    //if user and password exists then autologin
                    this.login();
                } else {
                    this.visFrm("loginTR");
                    this.logBut.focus();
                }
                //alert("PAGE OK");
            }                       
        } else {
            alert(notFound + "missing on the page!");
        }
    },
    openA: function(){
        if (this.modeA){
            //this.modeASkey
            this.wait(true,"otwieranie serwisu...");
            jsonrpc.lCtrl.doOpenA(this.ac_login.bind(this),this.usercid, this.modeASkey, getMW(), getMH(), queryStr);
        }
    },
    //show only one of forms in interface
    visFrm: function(fName){
        this.frms.each(function(f){
            var o = $(f);
            if (o) Element.hide(o);
        });
        var o = $(fName);
        if (o) Element.show(o);
    },
    //starts login process
    login: function(passSave){
        this.logOrPass = true;
        this.doLogin(false,this.getSerKey(),this.getDObjVal("user"), this.getDObjVal("pass"), this.uPassEnc, passSave);        
    },
    //returns trimed value of given object
    getDObjVal: function(o){
        if (this[o]){
            var v = this[o].value;
            v = v.tr();
            this[o].value = v;
            return v;
        } else {
            alert("Object " + o + " not exists!");
        }
        return "";
    },
    //starts changing password process
    chgPass: function(passSave){
        this.logOrPass = false;
        //trimming ...
        var nPass = this.getDObjVal("newPass");
        var nPass2 = this.getDObjVal("newPass2");        
        if (nPass.length > 0){
            if (nPass2.length > 0){
                if (nPass2==nPass){
                    this.doLogin(true, this.getSerKey(), this.chgUser.value,  nPass, this.uPassEnc, passSave);
                } else {
                    alert("hasła nie są pasują!");
                }
            } else {
                alert("hasło powtórzone jest puste!");
            }
        } else {
            alert("hasło jest puste!");
        }
    },  
    //asynchronous call; loging or change password process
    doLogin: function(chgPass,sKey,user,pass,enc,passSave){
        passSave = !!passSave;        
        this.anErr.innerHTML = " ";
        if (sKey!=null){
            if (user!=null && user.length >0){
                if (pass!=null && pass.length >0){
                   if (chgPass){
                        this.wait(true,"zmiana hasła...");
                        jsonrpc.lCtrl.doLogin(this.ac_login.bind(this), true, sKey, user, pass, enc, passSave);
                   } else {
                        this.wait(true,"logowanie...");    
                        jsonrpc.lCtrl.doLogin( this.ac_login.bind(this), false, sKey, user, pass, enc, passSave);
                   }
                } else alert("hasło nie może być puste!");
            } else alert("wprowadź nazwę użytkownika!");
        } else {
            alert("wprowadź nazwę użytkownika!");
        }
    },
    //asynch login response function 
    ac_login: function(ret,ex) {
        if(ex) { this.exHandler(ex); return; }
        this.wait(false,"");        
        if (ret) this.doResp(ret);
    },
    //asynch open response function 
    ac_open: function(ret,ex) {
        if(ex) { this.exHandler(ex); return; }
        this.wait(false,"");
        if (ret){            
            $("fooF").submit();
        } else {
            alert("Nieoczekiwany błąd!");
        }
    },
    //process login response, shows appropriate form and messages
    doResp: function(r){
        //prompt("",toJSON(r));
        this.anErr.innerHTML = r.error ? r.error : " ";
        if (r.restSerStatus!=null){
            //restoring service
            var t = this.getRestoringTxt(r.restSerStatus);    
            this.restDIV.innerHTML = t;
            this.visFrm("restTR");
            window.setTimeout(function(){
                if (this.modeA){
                    this.openA();
                } else {
                    if (this.logOrPass) {
                        this.login();
                    } else {
                        this.chgPass();
                    }
                }
            }.bind(this), 1000);
        } else {
            if (r.anonymous){
              if (r.connected){
                $("fooF").submit();                
              } else {
                 window.setTimeout(function(){this.openA();}.bind(this), 2000);
              }
            } else {
                if (r.connected){
                    if (r.expireTime > -1 ){
                        var warnS = r.expireTime == 0 ? "Hasło właśnie wygasło! \nPrzy następnym logowaniu będziesz zmuszona(y) zmienić hasło. \nMożesz też zrobić to teraz.\nCzy chcesz zmienić teraz hasło ?" : ("Hasło wygaśnie za dni : " + r.expireTime + "!.\n Czy chcesz zmienić hasło już teraz ?");
                        if (confirm(warnS)){                            
                            this.chgUser.value = this.user.value;                    
                            this.visFrm("chgPassTR");
                        } else {
                             //go further                                  
                             this.wait(true,"otwieranie projektu \"" + this.getSerName() + "\"");   
                             jsonrpc.lCtrl.doOpen(this.ac_open.bind(this), this.getSerKey(), getMW(), getMH(), queryStr);                                
                        }
                    } else {
                         //go further     
                         this.wait(true,"otwieranie projektu \"" + this.getSerName() + "\"");   
                         jsonrpc.lCtrl.doOpen(this.ac_open.bind(this), this.getSerKey(), getMW(), getMH(), queryStr);                                
                    }                     
                } else {
                    if (r.expired){
                        //paswor expired 
                        //"oldPass" "chgUser" "newPass" "errChgUserPass" lCtrl.chgPass();                        
                        this.chgUser.value = this.user.value;                    
                        this.visFrm("chgPassTR");
                    }
                }
            }
        }
    },
    wait: function(onOff,msg){
        if (this.taskTxt) this.taskTxt.innerHTML = msg ? msg : " ";        
        document.body.style.cursor= onOff ? "wait" : "default";
        this.progressTR.style.visibility = onOff ? "visible" : "hidden";        
    },
    getSerKey: function(){ return this.getSer(true);},
    getSerName: function(){ return this.getSer(false);},
    getSer: function(keyOrName){
        if (this.serviceSel && this.serviceSel.selectedIndex >= 0){
            var o = this.serviceSel.options[this.serviceSel.selectedIndex];
            return keyOrName ? o.value : o.text;             
        }
        return null;
    },
    //returns restoring info tekst based on restoring object returned login process
    getRestoringTxt: function(s){
        var rTxt = "<p>Uruchamienie serwisu ...</p><br><br>" +
                   "<p>Postęp: poziom " + s.curStep + "z " + s.maxSteps + "</p>" +
                   "<p>Liczba prób w danym poziomie :" + s.stepTryCnt + "</p>" + 
                   (this.showRestoreDetails ? "<!--" : "") +
                   "<p>" + s.stepDescription + "</p>" +
                   "<p>" + s.error + "</p>" +
                   "<p>Serwis uruchamiany od " + s.restoringTime + "sekund</p>" +
                   (this.showRestoreDetails ? "-->" : "") +
                   "<br><br><p>Ta strona przekieruje Cię do serwisu gdy tylko będzie on dostępny !</p>"
        return rTxt;
    },
    //default RPC errorhandler
    exHandler: function(ex) {
        if (ex){
            if (ex.code == JSONRpcClient.Exception.CODE_ERR_NOMETHOD){
                alert("Problem z połączeniem do serwisu!");                
            } else {
                if (this.debugMode){
                    alert("RPC error " + " \"" + this.exHandler.caller + "\" : \n" + 
                    " --name : " + ex.name + "\n" + 
                    " --code : " + ex.code + "\n" + 
                    " --message : " + ex.message + "\n" + 
                    " --javaStack : " + ex.javaStack );                    
                } else { 
                    alert("Error: " + " \"" + this.exHandler.caller + "\" : \n" + 
                    " --name : " + ex.name + "\n" + 
                    " --code : " + ex.code + "\n");
                }
            }
        }
   }    
  };