// Global variables
var CGI_URL = "http://www.connectability.ca/connectability/cgi-bin/";
var LOGIN_URL = "https://www.connectability.ca/connectability/pages/login.html";
var SWF_URL = "http://www.connectability.ca/connectability/pages/";
var LIBRARY_URL = "http://www.connectability.ca/connectability/library/";
var user_logged_in = 0;
var library_startpage = 'startpage.html';
var library_images_path = LIBRARY_URL + "images/";
var login_url = CGI_URL + "login.php";
var loginWindow;
var loginWindowWidth = 625;
var loginWindowHeight = 404;
var callerMovie = "";
var loginRedirectURL = "";

function setCallerMovie(newCaller)
{
	callerMovie = newCaller;
}

function thisMovie(movieName)
{
	var isIE = navigator.appName.indexOf("Microsoft") != -1;
	return (isIE) ? window[movieName] : document[movieName];
}

function openWithLogin(openURL)
{
	loginRedirectURL = openURL;
	
	// Go directly to URL if already logged in
	user_logged_in ? jsVerifyLogin() : openLoginWindow();
}

function jsVerifyLogin()
{
	if (callerMovie != "")
	{
		thisMovie(callerMovie).verifyLogin();
	}
	else
	{
		loginRedirectURL == "" ? window.location.reload(true) : window.location.href = loginRedirectURL;
	}
}

function setFlashVariables()
{
	var query = window.location.search.substring(1);
	var vars = query.split("&");
	for (var i = 0; i < vars.length; i++)
	{
		var pair = vars[i].split("=");

		// FireFox fix
		window.document.index.name == undefined ? window.document.index[1].SetVariable(pair[0], pair[1]) :
		                                          window.document.index.SetVariable(pair[0], pair[1]);
	}
}

// Given a variable name, return the corresponding GET string value
function getQueryParamValue(param)
{
	var q = document.location.search || document.location.hash;

	if (q)
	{
		var startIndex = q.indexOf(param + "=");
		var endIndex = (q.indexOf("&", startIndex) > -1) ? q.indexOf("&", startIndex) : q.length;

		if (q.length > 1 && startIndex > -1)
		{
			return q.substring(q.indexOf("=", startIndex) + 1, endIndex);
		}
	}

	return "";
}

function openLoginWindow()
{
	var loginLeft = 0;
	var loginTop = 0;

	if (navigator.appName == "Netscape")
	{
		loginLeft = window.screenX + window.outerWidth/2 - loginWindowWidth/2;
		loginTop = window.screenY + window.outerHeight/2 - loginWindowHeight/2;
	}
	else if (navigator.appName.indexOf("Microsoft") != -1)
	{
		loginLeft = window.screenLeft + document.body.offsetWidth/2 - loginWindowWidth/2;
		loginTop = window.screenTop + document.documentElement.clientHeight/2 - loginWindowHeight/2;
	}

	//try
	//{
		loginWindow = window.open(LOGIN_URL,"loginForm","scrollbars=1,location=1,status=1,left=" + loginLeft + ",top=" + loginTop + 
								  ",width=" + loginWindowWidth + ",height=" + loginWindowHeight + ",modal=yes");
		//loginWindow.focus();
	//} 
	//catch(e) {}
	//setTimeout('verifyWindowOpen(loginWindow)', 5000);
}

// Detect popup blockers
function verifyWindowOpen(targetWindow)
{
	try
	{
		var targetID = targetWindow.id;
	} 
	catch(e)
	{
		alert("It appears that your popup blocking software prevents the login screen from being shown. Please " + 
		      "disable any popup blocking software or add ConnectABILITY to your safe sites list in order to log in.");
	}
}

// Close all child windows
function closeAllPopups()
{
	if (loginWindow != null) { loginWindow.close(); }
}

function newImage(arg)
{
	if (document.images)
	{
		rslt = new Image();
		rslt.src = library_images_path + arg;
		return rslt;
	}
}

function changeImages()
{
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages()
{
	if (document.images)
	{
		info_centre_over = newImage("info_centre-over.gif");
		comm_centre_over = newImage("comm_centre-over.gif");
		//library_over   = newImage("library-over.jpg");
		library_over     = newImage("library-over.gif");
		si_home_over     = newImage("si_home-over.gif");
		lt_home_over     = newImage("lt_home-over.gif");
		//home_over      = newImage("home-over.png");
		home_over        = newImage("home-over.gif");

		preloadFlag      = true;
	}
}

function loadNavBar()
{
	document.write('<table id="Table_01" width="687" border="0" cellpadding="0" cellspacing="0">' + 
				   '	<tr>' + 
				   '		<td>' +
				   '			<img id="ca_logo" src="' + library_images_path + 'ca_logo.gif" width="315" height="98" alt="ConnectABILITY Logo" /></td>' + 
				   '		<td>' + 
				   '			<a href="' + SWF_URL + 'index.html?showSection=InformationCentre"' + 
				   '				onmouseover="changeImages(\'info_centre\', \'' + library_images_path + 'info_centre-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'info_centre\', \'' + library_images_path + 'info_centre.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'info_centre\', \'' + library_images_path + 'info_centre-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'info_centre\', \'' + library_images_path + 'info_centre-over.gif\'); return true;">' + 
				   '				<img name="info_centre" id="info_centre" src="' + library_images_path + 'info_centre.gif" width="61" height="98" border="0" alt="Information Centre" /></a></td>' + 
				   '		<td>' + 
				   '			<a href="#" onclick="openWithLogin(\'' + SWF_URL + 'index.html?showSection=CommunicationCentre\');"' + 
				   '				onmouseover="changeImages(\'comm_centre\', \'' + library_images_path + 'comm_centre-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'comm_centre\', \'' + library_images_path + 'comm_centre.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'comm_centre\', \'' + library_images_path + 'comm_centre-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'comm_centre\', \'' + library_images_path + 'comm_centre-over.gif\'); return true;">' + 
				   '				<img name="comm_centre" id="comm_centre" src="' + library_images_path + 'comm_centre.gif" width="73" height="98" border="0" alt="Communication Centre" /></a></td>' + 
				   '		<td>' + 
				   '			<a href="' + CGI_URL + 'library.php"' + 
				   '				onmouseover="changeImages(\'library\', \'' + library_images_path + 'library-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'library\', \'' + library_images_path + 'library.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'library\', \'' + library_images_path + 'library-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'library\', \'' + library_images_path + 'library-over.gif\'); return true;">' + 
				   '				<img name="library" id="library" src="' + library_images_path + 'library.gif" width="54" height="98" border="0" alt="Library" /></a></td>' + 
				   '		<td>' + 
				   '			<a href="' + SWF_URL + 'index.html?showSection=Supported_Inclusion_homepage"' + 
				   '				onmouseover="changeImages(\'si_home\', \'' + library_images_path + 'si_home-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'si_home\', \'' + library_images_path + 'si_home.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'si_home\', \'' + library_images_path + 'si_home-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'si_home\', \'' + library_images_path + 'si_home-over.gif\'); return true;">' + 
				   '				<img name="si_home" id="si_home" src="' + library_images_path + 'si_home.gif" width="58" height="98" border="0" alt="Supported Inclusion" /></a></td>' + 
				   '		<td>' + 
				   '			<a href="' + SWF_URL + 'index.html?showSection=Learning_Together_homepage"' + 
				   '				onmouseover="changeImages(\'lt_home\', \'' + library_images_path + 'lt_home-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'lt_home\', \'' + library_images_path + 'lt_home.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'lt_home\', \'' + library_images_path + 'lt_home-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'lt_home\', \'' + library_images_path + 'lt_home-over.gif\'); return true;">' + 
				   '				<img name="lt_home" id="lt_home" src="' + library_images_path + 'lt_home.gif" width="54" height="98" border="0" alt="Learning Together" /></a></td>' + 
				   '		<td>' + 
				   '			<a href="' + SWF_URL + 'index.html?showSection=homepage"' + 
				   '				onmouseover="changeImages(\'home\', \'' + library_images_path + 'home-over.gif\'); return true;"' + 
				   '				onmouseout="changeImages(\'home\', \'' + library_images_path + 'home.gif\'); return true;"' + 
				   '				onmousedown="changeImages(\'home\', \'' + library_images_path + 'home-over.gif\'); return true;"' + 
				   '				onmouseup="changeImages(\'home\', \'' + library_images_path + 'home-over.gif\'); return true;">' + 
				   '				<img name="home" id="home" src="' + library_images_path + 'home.gif" width="72" height="98" border="0" alt="home" /></a></td>' + 
				   '	</tr>' + 
				   '</table>');
}

function loadReviews (pageNum)
{
	document.getElementById('reviewslist').innerHTML = '<div class="aligncenter">Please wait...</div>';
	
	// NOTE: cgiURL is set within the HTML file containing reviews
	var url = cgiURL + '&page=' + pageNum;

	/**
	 * The simple way for an Ajax request, use onRequest/onComplete/onFailure
	 * to do add your own Ajax depended code.
	 */
	new Ajax(url, {
		method: 'get',
		update: $('reviewslist')
	}).request();
}

// Display DSTO startpage sidebar link for DSTO partner users
function libraryDSTOStartPage()
{
	if (library_startpage.indexOf('dsto') != -1)
	{
		document.write('<a href="' + LIBRARY_URL + 'startpage_dsto.html" id="startpage">Start Page (DSTO)</a>');
	}
}