/**
     * rememberMe stuff 
     */
     var rememberMeFlagCookie = 'rememberme';
     var rememberMeDataCookie = 'rsessionid';
     var rememberMeDataDelimiter = '||';


    /**
     * this function gets the cookie, if it exists
     */
    function getCookie( name )
    {
      var start = document.cookie.indexOf( name + "=" );
      var len = start + name.length + 1;
      
      if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) )
      {
        return null;
      }
      
      if ( start == -1 )
      {
        return null;
      }
      
      var end = document.cookie.indexOf( ";", len );
      if ( end == -1 )
      {
        end = document.cookie.length;
      }
      
      return unescape( document.cookie.substring( len, end ) );
    }
    
    
    /**
     * 
     */
    function setCookie( name, value )
    {
      document.cookie = name + "=" +escape( value );
    }

    
    /**
     * 
     */
    function setCookieWithTimestamp( name, value, expiresInDays, cookiePath )
    {
      var expires = new Date();
      var expiresTmp = expires.getTime() + (expiresInDays * 24 * 60 * 60 * 1000);
      expires.setTime(expiresTmp);
      document.cookie = name + "=" + escape( value ) + "; expires=" + expires.toGMTString() + "; path=" + cookiePath;      
    }    
    
    /**
     * 
     */    
    function setRememberMeCookie(username, thePassword)
    {
      var toEncodeId = username + rememberMeDataDelimiter + thePassword;
      setCookieWithTimestamp(rememberMeDataCookie, Base64.encode(toEncodeId), 28, '/servlet/');
      setCookieWithTimestamp(rememberMeFlagCookie, 'true', 28, '/servlet/');
    }

    /**
     * 
     */
    function removeRememberMeCookie()
    {
      setCookieWithTimestamp(rememberMeDataCookie, '', 0, '/servlet/');
      setCookieWithTimestamp(rememberMeFlagCookie, 'false', '', '/servlet/');
    }
    
    
    function getRememberMeData()
    {
      var toDecodeId = Base64.decode(getCookie(rememberMeDataCookie));
      return toDecodeId.split(rememberMeDataDelimiter);
    }
    
    
    /**
     * 
     */
    function checkCookie()
    {
    	checkCookieFormByName('loginform');
    }

    
    /**
     * 
     */
    function checkCookieFormByName(formName)
    {
      if (getCookie("dynamic")==null && getCookie("JSESSIONID") == null)
      {
        alert("Sie müssen Cookies erlauben um diese Site nutzen zu können!");
        return false;
      }
      else if (document.forms[formName].elements['isSubmited'].value=="false")
      {

        // save remember me
        if(document.forms[formName].elements['rememberme'] != undefined &&
           document.forms[formName].elements['rememberme'].checked == true &&
           !isEmpty(document.forms[formName].elements['login'].value) &&
           !isEmpty(document.forms[formName].elements['password'].value) )
        {
          var username = document.forms[formName].elements['login'].value;
          var psswrd = document.forms[formName].elements['password'].value;
          setRememberMeCookie(username, psswrd);
        }
        
        document.forms[formName].elements['isSubmited'].value="true";
        document.forms[formName].submit();
        return true;
        
      }
      else if (document.forms[formName].elements['isSubmited'].value=="true")
      {
        // alert("Ihre Anfrage wurde entgegengenommen, bitte warten sie die Antwort ab.");
        return false;
      }
    }
    
    
    /**
     *
     */
    function isEmpty(thevalue)
    {
      if(thevalue == null)
      {
        return true;
      }
      else if(thevalue == '')
      {
        return true;
      }      
      
      return false;
    }
    
    /**
     * 
     */
    function submitLoginForm()
    {
      try
      {
        if(window.event.keyCode == 13)
        {
          checkCookie();
        }
      }
      catch(e)
      {
        
      }
    }


    /**
     * 
     */
    function doLogout()
    {
      removeRememberMeCookie();
      document.logoutform.submit();
    }

    /**
     * 
     */
    function doRememberMe(formName)
    {
      if(getCookie(rememberMeFlagCookie) != "true" ||
         document.forms['logoutform'] != undefined  )
      {
        //alert("I'm logged in or have no cookie - doing nothing");
        return;
      } // do remember me
      else if(document.forms[formName].elements['isSubmited'].value=="false")
      //  getCookie("rememberme") == "true" &&
      //  getCookie("username")   != null   &&
      //  getCookie("password")   != null)
      {
        
        var rememberMeData = getRememberMeData();
        var username = rememberMeData[0];
        var psswrd = rememberMeData[1];
        
        // renew remember me cookie
        setRememberMeCookie(username, psswrd);
        
        // DO LOGIN!

        document.forms[formName].elements['login'].value=username;
        document.forms[formName].elements['password'].value=psswrd;
        
        
        if(document.forms[formName].elements['rememberme'] != undefined)
        {
          document.forms[formName].elements['rememberme'].checked=true;
        }
        document.forms[formName].elements['isSubmited'].value="true";
        document.forms[formName].submit();
        return true;        
      }      
          
    }
    
    /**
     * 
     */
    function submitLoginFormByName(formName)
    {
      try
      {
        if(window.event.keyCode == 13)
        {
          checkCookieFormByName(formName);
        }
      }
      catch(e)
      {
        
      }
    }

    
    /**
     * obsolete, better use overloaded
     */
    function checkCookie2()
    {
      if (getCookie("dynamic")==null && getCookie("JSESSIONID") == null)
      {
        alert("Sie müssen Cookies erlauben um diese Site nutzen zu können!");
        return false;
      }
      else if (document.forms['loginform'].elements['isSubmited'].value=="false")
      {
        document.forms['loginform'].elements['isSubmited'].value="true";
        document.forms['loginform2'].submit();
        return true;
      }
      else if (document.forms['loginform'].elements['isSubmited'].value=="true")
      {
        //alert("Ihre Anfrage wurde entgegengenommen, bitte warten sie die Antwort ab.");
        return false;
      }
    }
    
    
    /**
     * 
     */    
    function writeLoginButton()
    {
      document.write("<a class=\"loginbutton\" title=\"Zum Formular absenden hier klicken\" href=\"#\" onClick=\"checkCookie()\" onkeypress=\"checkCookie()\">GO</a>");
    }
    
    
    /**
     * 
     */    
    function wopen(link,wi,he, scrollbar, name)
    {
    	var screentop, screenleft;
    	
    	var ScreenWidth = screen.width;
    	var ScreenHeight = screen.height;
    	
    	screenleft = parseInt( ( ScreenWidth - wi ) / 2 );
    	screentop = parseInt( ( ScreenHeight - he ) / 2 );
    		
    	if ( screenleft < 0 )
    	{
    	  screenleft = 0;
    	}
    	if ( screentop < 0 )
    	{
    	  screentop = 0;
    	}
    	var args = "toolbar=0,"+",left="+screenleft;
    	args +=",top="+screentop+",directories=0,status=1,menubar=0,scrollbars="+scrollbar+",resizable=1,width="+wi+",height="+he;
    	
    	var wincom = window.open(link, name, args);
    	wincom.focus();
    }
    





/**
*
*  Base64 encode / decode
*  http://www.webtoolkit.info/
*
**/

var Base64 = {

	// private property
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",


	// public method for encoding
	encode : function (input) {
		var output = "";
		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
		var i = 0;

		input = Base64._utf8_encode(input);

		while (i < input.length) {

			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);

			enc1 = chr1 >> 2;
			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
			enc4 = chr3 & 63;

			if (isNaN(chr2)) {
				enc3 = enc4 = 64;
			} else if (isNaN(chr3)) {
				enc4 = 64;
			}

			output = output +
			this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

		}

		return output;
	},

	// public method for decoding
	decode : function (input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;

		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

		while (i < input.length) {

			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));

			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;

			output = output + String.fromCharCode(chr1);

			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}

		}

		output = Base64._utf8_decode(output);

		return output;

	},

	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";

		for (var n = 0; n < string.length; n++) {

			var c = string.charCodeAt(n);

			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}

		}

		return utftext;
	},

	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;

		while ( i < utftext.length ) {

			c = utftext.charCodeAt(i);

			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}

		}

		return string;
	}

}