var _updateTimer			= 0;
var _maxTimer				= 1800;
var _pingInterval			= 60000;
var _loggedoutPingInterval	= 5000;
var _loggedoutCurrentPingInterval;
var _overlayInitialized = false;
var _overlaybase;
var _overlay;
var _loggedOutTextCell;
var _lockUsername;

var _resetTimer = false;

_updateTimer = setTimeout("checkTimeout()",_pingInterval);

//debugger;

document.onkeypress = function(evt) {
	_resetTimer = true;
}

function checkTimeout() {
	if(_resetTimer) {
		executeAjax('index.php?page_id='+getParameter('page_id')+'&ajaxAction=checkTimeout&resetTimer=true',timeoutResponse);
		_resetTimer = false;
	} else {
		executeAjax('index.php?page_id='+getParameter('page_id')+'&ajaxAction=checkTimeout',timeoutResponse);
	}
}

function timeoutResponse(response) {
	if(response.result == 'ok') {
		if(response.timer > _maxTimer) {
			var d = new Date();
			timedOut(true,'<br/>På grunn av inaktivitet har du blitt logget ut av <b>Easy</b>Publish CMS' + '<br />Du ble logget ut kl ' + d.getHours() + ':' + d.getMinutes());
		} else {
			_updateTimer = setTimeout("checkTimeout()",_pingInterval);
		}
	} else {
		timedOut(false,'<br/>På grunn av inaktivitet har du blitt logget ut av <b>Easy</b>Publish CMS');
		var username = document.getElementById('overlayUsername');
		if(username.value == '') {
			username.value = response.uname;
		}
		_lockUsername = response.uname;
	}
}

function timeuotLoginResponse(response) {
	if(response.result == 'ok') {
		_overlaybase.style.display = 'none';
		_overlay.style.display = 'none';
		var username = document.getElementById('overlayUsername');
		var password = document.getElementById('overlayPassword');
		username.value = '';
		password.value = '';
		_updateTimer = setTimeout("checkTimeout()",_pingInterval);
	} else {
		alert('Feil. Kan ikke logge inn med oppgitt brukernavn/passord');
		_updateTimer = setTimeout("checkLoggedout()",_loggedoutCurrentPingInterval);
	}
}

function timeoutLogin() {
	var username = document.getElementById('overlayUsername');
	if((_lockUsername != undefined) &&(_lockUsername != '') && (username.value != _lockUsername) && (username.value.substring(0,6) != 'force:')) {
		alert('Dette vinduet kan bare åpnes av ' + _lockUsername);
		return;
	}
	if(username.value.substring(0,6) == 'force:') {
		username.value = username.value.substring(6);
	}
	var password = document.getElementById('overlayPassword');
	clearTimeout(_updateTimer);
	executeAjax('index.php?page_id='+getParameter('page_id')+'&edit=1&ajaxAction=checkTimeout&Example_Session='+URLEncode(getCookieValue('Example_Session')),timeuotLoginResponse,'username='+URLEncode(username.value)+'&password='+URLEncode(password.value)+'&sprak='+URLEncode('norsk')+'&btnSubmit='+URLEncode('OK'));
}

function logoutResponse(response) {
	if(response.result == 'ok') {
		alert('Feil ved timeout?');
		_updateTimer = setTimeout("timedOutLogout()",_pingInterval);
	} else {
		var username = document.getElementById('overlayUsername');
		if(username.value == '') {
			username.value = response.uname;
		}
		_lockUsername = response.uname;
		_loggedoutCurrentPingInterval = _loggedoutPingInterval;
		checkLoggedout();
	}
}

function timedOutLogout() {
	executeAjax('index.php?page_id='+getParameter('page_id')+'&ajaxAction=logOut',logoutResponse);
}

function checkLoggedout() {
	executeAjax('index.php?page_id='+getParameter('page_id')+'&edit=1&ajaxAction=checkLoggedout',loggedoutResponse);
}

function loggedoutResponse(response) {
	if(response.result == 'ok') {
		_overlaybase.style.display = 'none';
		_overlay.style.display = 'none';
		_updateTimer = setTimeout("checkTimeout()",_pingInterval);
	} else {
		var username = document.getElementById('overlayUsername');
		if(username.value == '') {
			username.value = response.uname;
		}
		_lockUsername = response.uname;
		_updateTimer = setTimeout("checkLoggedout()",_loggedoutCurrentPingInterval);

		// Increase ping time with 1 sek
		// When logged out for a long time, the ping time should increase.
		if(_loggedoutCurrentPingInterval <= (4*_loggedoutPingInterval)) {
			_loggedoutCurrentPingInterval = _loggedoutCurrentPingInterval+1000;
		}
	}
}

function timedOut(logout,loggedOutReason) {
	if(logout) {
		executeAjax('index.php?page_id='+getParameter('page_id')+'&ajaxAction=logOut',logoutResponse);
	} else {
		_loggedoutCurrentPingInterval = _loggedoutPingInterval;
		_updateTimer = setTimeout("checkLoggedout()",_loggedoutCurrentPingInterval);
	}

	if(!_overlayInitialized) {
		_overlaybase					= document.createElement('div');
		_overlaybase.className = 'overlaybase';
		document.body.appendChild(_overlaybase);

		_overlay						= document.createElement('div');
		_overlay.className = 'overlay';
		document.body.appendChild(_overlay);

		var overlayTitle				= document.createElement('div');
		overlayTitle.className = 'overlaytitle';
		overlayTitle.innerHTML			= '<b>Easy</b>Publish CMS - Innlogging';
		_overlay.appendChild(overlayTitle);

		var overlayBody					= document.createElement('div');
		overlayBody.className = 'overlaybody';
		_overlay.appendChild(overlayBody);

		var form						= document.createElement('form');
		form.id = 'frmEPLoggedOut';
		
		overlayBody.appendChild(form);

		var table						= document.createElement('table');
		table.style.width				= '100%';
		table.style.height				= '100%';
		table.style.fontFamily			= 'verdana,tahoma';
		table.style.fontSize			= '11px';
		form.appendChild(table);

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);
		tableCell.style.textAlign		= 'center';
		tableCell.style.height			= '40px';
		tableCell.style.color			= 'red';
		_loggedOutTextCell				= tableCell;

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);
		tableCell.style.textAlign		= 'center';
		tableCell.style.verticalAlign	= 'middle';

		var fieldset = document.createElement('fieldset');
		fieldset.style.backgroundColor	= 'activeborder';
		fieldset.style.width			= '430px';
		fieldset.style.height			= '180px';
		tableCell.appendChild(fieldset);

		var table						= document.createElement('table');
		table.style.fontFamily			= 'verdana,tahoma';
		table.style.fontSize			= '11px';
		fieldset.appendChild(table);

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);
		tableCell.style.textAlign		= 'center';
		tableCell.colSpan				= 2;
		tableCell.style.fontSize		= '12px';
		tableCell.innerHTML				= '<b>Easy</b>Publish CMS Login';

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);

		tableCell.style.textAlign		= 'right';
		tableCell.innerHTML				= 'Username';

		var tableCell					= tableRow.insertCell(tableRow.cells.length);

		var input						= document.createElement('input');
		input.name						= 'overlayUsername';
		input.id						= 'overlayUsername';
		
		input.onkeydown = function(e) {
        	e = e || window.event;
        	if (e.keyCode == 13) {
        	    timeoutLogin();
    	        return false;
	        }
    	};
		
		input.setAttribute('size','25');
		input.setAttribute('align','right');
		tableCell.appendChild(input);

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);

		tableCell.style.textAlign		= 'right';
		tableCell.innerHTML				= 'Password';

		var tableCell					= tableRow.insertCell(tableRow.cells.length);

		var input						= document.createElement('input');
		input.name						= 'overlayPassword';
		input.id						= 'overlayPassword';
		input.type						= 'password';
		
		input.onkeydown = function(e) {
        	e = e || window.event;
        	if (e.keyCode == 13) {
        	    timeoutLogin();
    	        return false;
	        }
    	};
		
		input.setAttribute('size','25');
		input.setAttribute('align','right');
		tableCell.appendChild(input);

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);

		var button						= document.createElement('input');
		button.type						= 'button';
		button.value					= 'OK';
		button.attachEvent('onclick',timeoutLogin);
		tableCell.appendChild(button);

		var tableRow					= table.insertRow(table.rows.length);
		var tableCell					= tableRow.insertCell(tableRow.cells.length);
		tableCell.style.textAlign		= 'center';
		tableCell.colSpan = 2;
		tableCell.innerHTML				= '<a href="help_pw.php" style="color:black;">Glemt passordet?</a> / <a href="help_pw.php" style="color:black;">Forgot your password?</a><hr size=1 />All bruk av systemet uten avtale med Escio er forbudt. All bruk loggføres.<br />  Unauthorized use is strictly prohibited. All activities are logged. <hr size=1 /><a href="http://www.easypublish.no" target="_blank" style="color:black;">EasyPublish CMS</a> Copyright (C) 1999-2010, <a href="http://www.easypublish.no" target="_blank" style="color:black;">Escio AS</a>. All rights reserved.';


		_overlayInitialized				= true;
	}

	_loggedOutTextCell.innerHTML					= loggedOutReason;

	_overlaybase.style.display				= 'block';
	_overlay.style.display				= 'block';
	document.getElementById('overlayPassword').focus();
}

var _queryString = window.top.location.search.substring(1);

function getCookieValue(value) {
	if(document.cookie.indexOf(value)) {
		start	= document.cookie.indexOf(value) + value.length + 1;
		end		= document.cookie.substring(start).indexOf(';') - 1;

		if(end > 0) {
			return document.cookie.substring(start,start + end);
		} else {
			return document.cookie.substring(start);
		}
	} else {
		return '';
	}
}

function getParameter(parameterName) {

	// Add "=" to the parameter name (i.e. parameterName=value)
	var parameterName = parameterName + "=";

	if(_queryString.length > 0) {
		// Find the beginning of the string
		begin = _queryString.indexOf(parameterName);

		// If the parameter name is not found, skip it, otherwise return the value
		if ( begin != -1 ) {
			// Add the length (integer) to the beginning
			begin += parameterName.length;

			// Multiple parameters are separated by the "&" sign
			end = _queryString.indexOf ( "&" , begin );

			if ( end == -1 ) {
				end = _queryString.length
			}

			// Return the string
			return unescape(_queryString.substring(begin, end ));
		}

		// Return "null" if no parameter has been found
		return "null";
	}
}