function checkFlashVer() {
    // Check for Flash version 9+
    var hasReqestedVersion = DetectFlashVer(9, 0, 0);
    if (!hasReqestedVersion) {
        var userAction = confirm(lang['FLASH_WARN']);
        if (userAction == true) {
            // Create popup window to Adobe
            var currWinW = window.innerWidth;
            var currWinH = window.innerHeight;
            var windowXY = findWindowCenter(currWinW, currWinH);
            var urlPath = "http://www.adobe.com/go/getflashplayer";
            var winPop = open(urlPath, 'FlashPlayer', windowXY + ',scrollbars=yes,status=yes,resizable=yes,toolbar=yes,location=yes,menubar=yes');
            if (!winPop.opener) winPop.opener = self;
            winPop.focus();
        }
    }
}

function checkForOldSafari() {
    // Safari 3 - internal version number 523.x
    if ($.browser.safari  &&  parseInt($.browser.version) < 523 ) {
        alert(lang['SAFARI_WARN']);
    }
}

function findWindowCenter(winWidth, winHeight) {
    // Target the window to open in the center of the screen
    var screenWidth = screen.width;
    var screenHeight = screen.height;

    var windowX = (screenHeight - winHeight) / 2;
    var windowY = (screenWidth - winWidth) / 2;

    centerString = "width=" + winWidth + ",height=" + winHeight + ",top=" + windowX + ",left=" + windowY;

    return centerString;
}

function popupVideo(targetSrc) {
    // Create popup window
    var windowXY = findWindowCenter(650, 500);
    var urlPath = "./window.php?src=" + targetSrc;
    var winPop = open(urlPath, 'Video', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupAgent(bookid, pagenum, agentnum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 490);
    var urlPath = "./edit_agent.php?book=" + bookid + "&page=" + pagenum + "&agent=" + agentnum;
    var winPop = open(urlPath, 'Agent', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupText(bookid, pagenum, slotnum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 420);
    var urlPath = "./edit_text.php?book=" + bookid + "&page=" + pagenum + "&slot=" + slotnum;
    var winPop = open(urlPath, 'Text', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupImage(bookid, pagenum, slotnum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 650);
    var urlPath = "./edit_image.php?book=" + bookid + "&page=" + pagenum + "&slot=" + slotnum;
    var winPop = open(urlPath, 'Image', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupAudio(bookid, pagenum, slotnum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 475);
    var urlPath = "./edit_audio.php?book=" + bookid + "&page=" + pagenum+ "&slot=" + slotnum;
    var winPop = open(urlPath, 'Audio', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupTip(bookid, pagenum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_tip.php?book=" + bookid + "&page=" + pagenum;
    var winPop = open(urlPath, 'Tip', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupExtras(bookid, pagenum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_extras.php?book=" + bookid + "&page=" + pagenum;
    var winPop = open(urlPath, 'Extras', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupResponse(bookid, pagenum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_response.php?book=" + bookid + "&page=" + pagenum;
    var winPop = open(urlPath, 'Response', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupTOC(bookid, pagenum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_toc.php?book=" + bookid + "&page=" + pagenum;
    var winPop = open(urlPath, 'TOC', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupTOCTitle(bookid, pagenum) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_toc_title.php?book=" + bookid;
    var winPop = open(urlPath, 'TOC', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupView(bookid, pagenum, orientation) {
    // Create popup window
    if (orientation == "2") {
        var windowXY = findWindowCenter(690, 560);
    } else {
        var windowXY = findWindowCenter(545, 695);
    }
    var urlPath = "./view.php?op=view&book=" + bookid + "&page=" + pagenum;
    var winPop = open(urlPath, 'View', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupPrint(bookid) {
    // Create popup window
    var windowXY = findWindowCenter(700, 400);
    var urlPath = "./view.php?op=print&book=" + bookid;
    var winPop = open(urlPath, 'Print', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupGlossaryText(bookid, wordid) {
    // Create popup window
    var windowXY = findWindowCenter(700, 410);
    var urlPath = "./edit_glossary_text.php?book=" + bookid + "&word=" + wordid;
    var winPop = open(urlPath, 'GText', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupGlossaryImage(bookid, wordid) {
    // Create popup window
    var windowXY = findWindowCenter(700, 650);
    var urlPath = "./edit_glossary_image.php?book=" + bookid + "&word=" + wordid;
    var winPop = open(urlPath, 'GImage', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupGlossaryAudio(bookid, wordid) {
    // Create popup window
    var windowXY = findWindowCenter(700, 475);
    var urlPath = "./edit_glossary_audio.php?book=" + bookid + "&word=" + wordid;
    var winPop = open(urlPath, 'GAudio', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupGlossary(bookid, wordid) {
    // Create popup window
    if (wordid == null) { wordid = ""; }
    var windowXY = findWindowCenter(520, 500);
    var urlPath = "./view_glossary.php?book=" + bookid + "&word=" + wordid + "#curr";
    var winPop = open(urlPath, 'GView', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupNotice() {
    // Create popup window
    var windowXY = findWindowCenter(650, 520);
    var urlPath = "./window.php?src=notice";
    var winPop = open(urlPath, 'Notice', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function popupAvatarImage(bookid, avatarid) {
    // Create popup window
    var windowXY = findWindowCenter(520, 500);
    var urlPath = "./edit_avatar.php?op=editimg&book=" + bookid + "&avatar=" + avatarid;
    var winPop = open(urlPath, 'AvatarImg', windowXY + ',scrollbars=yes,status=no,resizable=yes');
    if (!winPop.opener) winPop.opener = self;
    winPop.focus();
}

function showVideo(num, filename) {
    // Build Flash OBJECT item
    var outputHTML = "";
    outputHTML += "<object type=\"application/x-shockwave-flash\" width=\"368\" height=\"354\" data=\"./flash/mediaplayer/player.swf?file=../../video/" + filename + "&autostart=true&fullscreen=true&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/classic.zip\" wmode=\"transparent\" allowScriptAccess=\"always\" allowfullscreen=\"true\">";
    outputHTML += "<param name=\"movie\" value=\"./flash/mediaplayer/player.swf?file=../../video/" + filename + "&autostart=true&fullscreen=true&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/classic.zip\" />";
    outputHTML += "<param name=\"wmode\" value=\"transparent\" />";
    outputHTML += "<param name=\"allowScriptAccess\" value=\"always\" />";
    outputHTML += "<param name=\"allowfullscreen\" value=\"true\" />";
    outputHTML += "</object>";
    // Add new video item
    document.getElementById("videohome").innerHTML = outputHTML;
}

function showAudio(filepath) {
    var outputHTML = "";
    outputHTML += "<object type=\"application/x-shockwave-flash\" width=\"240\" height=\"19\" data=\"./flash/mediaplayer/player.swf?file=" + filepath  + "&autostart=false&fullscreen=false&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/classic.zip\" wmode=\"transparent\" allowScriptAccess=\"always\">";
    outputHTML += "<param name=\"movie\" value=\"./flash/mediaplayer/player.swf?file=" + filepath + "&autostart=false&fullscreen=false&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/classic.zip\" />";
    outputHTML += "<param name=\"wmode\" value=\"transparent\" />";
    outputHTML += "<param name=\"allowScriptAccess\" value=\"always\" />";
    outputHTML += "<param name=\"allowfullscreen\" value=\"false\" />";
    outputHTML += "</object>";
    // Add new audio item
    document.write(outputHTML);
}

function showAgentAudio(filepath) {
    var outputHTML = "";
    outputHTML += "<object type=\"application/x-shockwave-flash\" width=\"185\" height=\"19\" data=\"./flash/mediaplayer/player.swf?file=" + filepath  + "&autostart=false&fullscreen=false&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/simple.swf\" wmode=\"transparent\" allowScriptAccess=\"always\">";
    outputHTML += "<param name=\"movie\" value=\"./flash/mediaplayer/player.swf?file=" + filepath + "&autostart=false&fullscreen=false&backcolor=#EEEEEE&volume=100&skin=./flash/mediaplayer/simple.swf\" />";
    outputHTML += "<param name=\"wmode\" value=\"transparent\" />";
    outputHTML += "<param name=\"allowScriptAccess\" value=\"always\" />";
    outputHTML += "<param name=\"allowfullscreen\" value=\"false\" />";
    outputHTML += "</object>";
    // Add new audio item
    $('#audioDiv').eq(0).html(outputHTML);
}

function imageSwap(Item,ImgSrc) {
    if (document.images) {
        Item.src = ImgSrc;
    }
}

function windowClose(editStyle, glossary) {
    if (!glossary) var glossary = false;
    var haltClose = false;
    var closeConfirm = false;

    if (editStyle == "text") {
        if (tinyMCE != false) {
            tinyMCE.triggerSave();
        }
        prevVal = document.forms[0].prev.value;
        currVal = document.forms[0].text.value;
        // Check to see if 'previous' value matches the current value
        if (prevVal != currVal) {
            haltClose = true;
        }
    }

    if (editStyle == "textopt") {
        prevVal = document.forms[0].prev.value;
        currVal = document.forms[0].text.value;
        prevCheck = document.forms[0].prevcheck.value;
        currCheck = document.forms[0].incitem.checked;

        // Check to see if 'previous' value matches the current value
        if ( (prevVal != currVal) || (prevCheck + "") !== (currCheck + "") ) {
            haltClose = true;
        }
    }

    if (editStyle == "image") {
        aprevVal = document.forms[0].altprev.value;
        acurrVal = document.forms[0].alt.value;
        cprevVal = document.forms[0].captionprev.value;
        ccurrVal = document.forms[0].caption.value;

        // Check to see if previous alt tag value matches the current value
        if (aprevVal != acurrVal) {
            haltClose = true;
        }

        // Check to see if previous caption value matches the current value
        if (cprevVal != ccurrVal) {
            haltClose = true;
        }

        // Check to see if 'change' flag is set
        if (document.imageedit.change.value == "1") {
            haltClose = true;
        }
    }

    if (editStyle == "avatarimg") {
        // Check to see if 'change' flag is set
        if (document.imageedit.change.value == "1") {
            haltClose = true;
        }
    }

    if (editStyle == "audio") {
        // Check to see if 'change' flag is set
        if (document.audioedit.change.value == "1") {
            haltClose = true;
        }
    }

    if (haltClose) {
        // Show warning box and
        closeConfirm = confirm(lang['EDIT_CLOSE_CONFIRM']);
        if (closeConfirm) {
        // OK -- close window
            if (editStyle == "image") {
                // Call to remove any upload image and then close window
                var bookid = document.imageedit.book.value;
                if (!glossary) {
                    var pageid = document.imageedit.page.value;
                    var slotnum = document.imageedit.slot.value;
                    document.location.href = "./edit_image.php?op=cancel&book=" + bookid + "&page=" + pageid + "&slot=" + slotnum;
                } else {
                    var wordid = document.imageedit.word.value;
                    document.location.href = "./edit_glossary_image.php?op=cancel&book=" + bookid + "&word=" + wordid;
                }
                return;
            }
            if (editStyle == "audio") {
                // Call to remove any upload audio and then close window
                var bookid = document.audioedit.book.value;
                if (!glossary) {
                    var pageid = document.audioedit.page.value;
                    document.location.href = "./edit_audio.php?op=cancel&book=" + bookid + "&page=" + pageid;
                } else {
                    var wordid = document.audioedit.word.value;
                    document.location.href = "./edit_glossary_audio.php?op=cancel&book=" + bookid + "&word=" + wordid;
                }
                return;
            }
            // Simply close all other windows
            window.close();
            return;
        } else {
            // Cancel - do nothing
            return;
        }
    }

    // No changes made - close window
    window.close();
    return;
}

function lengthCheck(maxlength) {
    if (tinyMCE != false) {
        tinyMCE.triggerSave();
    }

    var stripped = document.forms[0].text.value.replace(/(<([^>]+)>)/ig,"");

    if (stripped.length > maxlength) {
        temp = "\"" + lang['ERROR_CONTENT_LENGTH'] + "\";";
        msg = eval(temp);
        alert(msg);
        return false;
    }

    return true;
}

//------------------------------------------------------------------------------------------------

function createAgentBox(agentID, xmlPath, preview) {
    if (DragItem['dragAgent' + agentID]) return;
    var agent = new FlashAgent(agentID, 'http://agents.cast.org/v6/', 'http://agents.cast.org/shared/', xmlPath);

    if (preview == true) {
        agent.setOnReady( function() { enableAgentSave(); });
    }

    agent.setOnPlayStop( function() { agent.dragBox.hide(); } );
    agent.setSize(200,200);
    agent.createDragBox();
    agent.dragBox.clearOnHide = true;
    agent.dragBox.handleScroll = false;
    agent.dragBox.show();
}

function createAndPlay(agentID, xmlPath, preview) {
    //var xmlPath = sequenceFile[seqNum];
    var agBox = FlashApplet.lookupNumber(agentID);
    if (agBox == null) {
        createAgentBox(agentID, xmlPath, preview);
        //agBox = FlashApplet.lookupNumber(agentID);
    } else {
        agBox.seqPath = xmlPath;
        agBox.dragBox.show();
        agBox.updateSettings();
    }
}

function previewAgent() {
    // Make sure there is something else return
    var speechTxt = document.agentedit.text.value;
    if(speechTxt.trim() == "") {
        alert(lang['EDIT_COACH_TEXT']);
        return;
    }

    speechTxt = speechTxt.nl2br();
    speechTxt = speechTxt.stripnl();

    // Write back speech to form element
    //document.agentedit.text.value = speechTxt;

    // Get agent num and speech text
    var saveItems = new Array();
    saveItems['bookId'] = document.agentedit.book.value;
    saveItems['agentNum'] = document.agentedit.agent.value;
    saveItems['agentTxt'] = speechTxt;

    // Save temp file and play
    storeSequence(saveItems);
}

function storeSequence(saveItems) {
    var http_request = false;

    $.post("./store.php", {bookId: saveItems['bookId'], agentNum: saveItems['agentNum'], agentTxt: saveItems['agentTxt']}, function(returnData) {
        storeReturn(returnData);
    });
}

function storeReturn(returnData) {
    // Check for any reports php errors
    returnSplit = returnData.split("|");
    if (returnSplit[0].trim() != "OK" ) {
        alert(returnData);
    } else {
        // Everything should be ok
        // Save cache id
        document.getElementById('agentcache').value = returnSplit[2].trim();
        // Create and play agent
        var xmlPath = returnSplit[1].trim();
        var agentNum = document.agentedit.agent.value;
        createAndPlay(agentNum, xmlPath, true);
    }
}

function enableAgentSave() {
    var isIE6 = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Opera") == -1));
    var isIE7 = (navigator.userAgent.indexOf("MSIE 7.") != -1);

    // Enable save button
    document.getElementById('agentsave').disabled = "";

    // Turn save button image 'on'
    if (isIE6 || isIE7) {
        holdFilter = document.getElementById('agentsave').runtimeStyle.filter;
        newFilter = holdFilter.replace(/save_g.png/i, "save.png");
        document.getElementById('agentsave').runtimeStyle.filter = newFilter;
    } else {
        holdSrc = document.getElementById('agentsave').src;
        newSrc = holdSrc.replace(/save_g.png/i, "save.png");
        document.getElementById('agentsave').src = newSrc;
    }
}

function disableAgentSave() {
    var isIE6 = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Opera") == -1));

    // Disable save button
    document.getElementById('agentsave').disabled = "disabled";

    // Turn save button image 'off' - grayed out state
    if (isIE6) {
        holdFilter = document.getElementById('agentsave').runtimeStyle.filter;
        newFilter = holdFilter.replace(/save.png/i, "save_g.png");
        document.getElementById('agentsave').runtimeStyle.filter = newFilter;
    } else {
        holdSrc = document.getElementById('agentsave').src;
        newSrc = holdSrc.replace(/save.png/i, "save_g.png");
        document.getElementById('agentsave').src = newSrc;
    }
}

//------------------------------------------------------------------------------------------------
function generateBook(bookID) {
    var http_request = false;

    if (window.XMLHttpRequest) { // Mozilla, Safari,...
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType) {
            // Not loading XML as result - do not override
            //http_request.overrideMimeType('text/xml');
        }
    } else if (window.ActiveXObject) { // IE
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }

    if (!http_request) {
        alert('Error: Cannot create an XMLHTTP instance');
        return false;
    }
    http_request.onreadystatechange = function() { generateReturn(http_request); };

    // Send the request
    http_request.open("GET", "./generate.php?book=" + bookID);
    // Send the request
    http_request.send(null);
}

function generateReturn(http_request) {
    if (http_request.readyState == 4) {
        if (http_request.status == 200) {
            returnData = http_request.responseText;
            // Check for any reports php errors
            returnSplit = returnData.split("|");
            if (returnSplit[0].trim() != "OK" ) {
                if (returnSplit[0].trim() == "INVALID") {
                    // Invalid download attempt -- reload page to show nothing
                    document.location.href = "./download.php";
                }

                //alert(returnData);
                //document.getElementById('statuslog').innerHTML = returnData;
            } else {
                // Everything should be ok
                // Reload download window with download ID
                var bookID = returnSplit[1].trim();
                var downID = returnSplit[2].trim();
                showDownLink(bookID, downID);
            }
        } else {
            alert('There was a problem with the request.');
        }
    }
}

function showDownLink(bookID, downID) {
    newURL = "./download.php?op=download&book=" + bookID + "&down=" + downID;
    document.location.href = newURL;
}

//------------------------------------------------------------------------------------------------
function scaleImages(preview) {
    var isIE6 = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Opera") == -1));

    preview = (preview == true) ? preview : false;

    $('.scale').each(function() {
        if ($(this).children('img').length) {
            var childImg = $(this).children('img').eq(0);

            // Reset any scaling
            $(childImg).css('width', '');
            $(childImg).css('height', '');
            if (!preview) {
                $(childImg).css('position', "absolute");
                $(childImg).css('left', "-9999");
            }

            // Get image dimensions
            var imgW = $(childImg).attr('width');
            var imgH = $(childImg).attr('height');

            // Get box dimensions
            var boxW = $(this).width();
            var boxH = $(this).height();

            // Get caption height
            if ($(this).children('.imgcaption').length) {
                var capH = $(this).children('.imgcaption').eq(0).height();
                boxH = boxH - capH;
            }

            // Determine scale ratios
            var scaleW = boxW / imgW;
            var scaleH = boxH / imgH;

            //alert("Img:" + imgW + "::" + imgH + "\nBox:" + boxW + "::" + boxH + "\nScale:" + scaleW + "::" + scaleH);

            /* */
            // Move image into visible area
            if (!preview) {
                $(childImg).css('position', "relative");
                $(childImg).css('left', "0");
            }
            /* */

            if ((imgW < boxW) && (imgH < boxH)) {
                return;
            }

            if (!preview) {
                if (imgW <= boxW) {
                    $(this).css('height', "auto");
                    return;
                }

                if (imgW > boxW) {
                    var newScale = (imgW/boxW) * scaleW * 100;
                    $(childImg).css('width', newScale.toFixed(2) + "%")
                    $(childImg).css('height', "auto");
                    $(this).css('height', "auto");
                    return;
                }
            } else {
                if ((scaleW > scaleH)) {
                    var newScale = (imgW/boxW) * scaleH * 100;
                    $(childImg).css('width', newScale.toFixed(2) + "%")
                    $(childImg).css('height', "auto");
                } else {
                    $(childImg).css('width', "100%")
                    $(childImg).css('height', "auto");
                }
            }
        }
    });
}

function resizeCaptions() {
    $(".scale").each(function() {
        //var imgWidth = $(this).children('img').eq(0).attr('width');
        var imgWidth = $(this).children('img').eq(0).width();
        if ($(this).children('.imgcaption').length) {
            var capLeft = parseInt($(this).children('.imgcaption').eq(0).css('paddingLeft'));
            var capRight = parseInt($(this).children('.imgcaption').eq(0).css('paddingRight'));
            //alert(imgWidth + ":" + capLeft +":"+ capRight);
            $(this).children('.imgcaption').eq(0).css('width', imgWidth-capLeft-capRight);
        }
    });
}

//------------------------------------------------------------------------------------------------

// Open the specified UDL Connection item
function openTip() {
    // Hide the tip button
    document.getElementById("tipbtn").style.display = "none";
    // Show the text content
    document.getElementById("tipbox").style.display = "block";
    // ESC handler
    $("#tipbox").bind("keyup", function(event) {
        var code=event.charCode || event.keyCode;
	    if(code && code == 27) {// if ESC is pressed
            closeTip();
        }
    });
    // Set focus
    $("#tipbox").attr("tabindex", "-1");
    $("#tipbox").focus();
}

// Close the specified UDL Connection item
function closeTip() {
    // Hide agent item
    hideTipAgent();
    // Hide the text content
    document.getElementById("tipbox").style.display = "none";
    // Show the tip button
    document.getElementById("tipbtn").style.display = "block";
    // Set focus
    $("#tipbtn").focus();
}

function showTipAgent() {
    // Hide listen button
    document.getElementById("tipagentbtn").style.display = "none";
    // Update agent settings (sequence file)
    var agTip = FlashApplet.lookupNumber(20);
    if (agTip == null) {
        createTipAgent();
        agTip = FlashApplet.lookupNumber(20);
    } else {
        agTip.seqPath = agentTip;
        agTip.updateSettings();
    }
    // Insert into agent container
    document.getElementById('tipagent').style.marginTop = "-40px";
    agTip.insertTag('tipagent');
    // Set hide on play end
    agTip.setOnPlayStop( function() { hideTipAgent(); } );
    // Start playing
    //agTip.playSequence('01');
}

function hideTipAgent() {
    if (document.getElementById("tipagent") == null) {
        return;
    }

    // Delete the children of DOM node for the audio item
    objNode = document.getElementById("tipagent");
    // Walk DOM tree backwards
    while(objNode.hasChildNodes()) {
        objNode.removeChild(objNode.lastChild);
    }

    // Resize the div
    document.getElementById('tipagent').style.marginTop = "0px";

    // Show Listen buttons
    document.getElementById("tipagentbtn").style.display = "block";
}

function createTipAgent() {
    // sequenceFile(s) -- defined in page template -- e.g. [app_root]/xml/create_page.xml
    sequenceFile = agentTip;
    // Create agent object
	var agent = new FlashAgent(20, 'http://agents.cast.org/v6/', 'http://agents.cast.org/shared/', sequenceFile);
	agent.autoplay = true;
	agent.setSize(160, 160);
}

//------------------------------------------------------------------------------------------------

function showAgent(idnum) {
    // Hide listen button
    $('.masterModal .agentbtn').hide();

    // Update agent settings (sequence file)
    var agChar = FlashApplet.lookupNumber(idnum);
    if (agChar == null) {
        createAgent(idnum);
        agChar = FlashApplet.lookupNumber(idnum);
    } else {
        agChar.seqPath = sequenceFile[idnum];
        agChar.updateSettings();
    }

    // Insert into agent container
    $('#agentDiv').eq(0).css("marginTop", "-40px");
    agChar.insertTag('agentDiv');
    // Set hide on play end
    agChar.setOnPlayStop( function() { hideAgent2(); } );
}

function hideAgent2() {
    if (document.getElementById('agentDiv') == null) {
        return;
    }

    // Delete the children of DOM node for the audio item
    objNode = document.getElementById('agentDiv');
    // Walk DOM tree backwards
    while(objNode.hasChildNodes()) {
        objNode.removeChild(objNode.lastChild);
    }

    // Resize the div
   $('.masterModal #agentDiv').eq(0).css("marginTop", "0px");

    // Show Listen buttons
    $('.masterModal .agentbtn').show();
}

function createAgent(idnum) {
    // Create agent object
	var agent = new FlashAgent(parseInt(idnum), 'http://agents.cast.org/v6/', 'http://agents.cast.org/shared/', sequenceFile[idnum]);
	agent.autoplay = true;
	agent.setSize(160, 160);
}

//------------------------------------------------------------------------------------------------

function checkBookInfo() {
    // Ignore book info validation for 'Cancel' press
    if (document.getElementById('btnpress').value == "cancel") { return true; }

    var errorMsg = "";

    // Book title
    if (document.book_info.infotitle.value.trim() == "") {
        errorMsg += " - " + lang['EDIT_INFO_TITLE'] + "\n";
    }

    // Credits
    if ( (document.book_info.infoauthor.value.trim() == "") &&
        (document.book_info.infoillustrator.value.trim() == "") &&
        (document.book_info.infooauthor.value.trim() == "") &&
        (document.book_info.infoadaptedby.value.trim() == "") ) {
        errorMsg += " - " + lang['EDIT_INFO_CREDIT'] + "\n";
    }

    // Content Area
    if (document.book_info.infoarea.value == "") {
        errorMsg += " - " + lang['EDIT_INFO_CONTENT'] + "\n";
    }

    // Book Language
    if (document.book_info.infolang.value == "") {
        errorMsg += " - " + lang['EDIT_INFO_LANGUAGE'] + "\n";
    }

    // Grade Level
    if (document.book_info.glP.checked == false &&
        document.book_info.glK.checked == false &&
        document.book_info.gl1.checked == false &&
        document.book_info.gl2.checked == false &&
        document.book_info.gl3.checked == false &&
        document.book_info.gl4.checked == false &&
        document.book_info.gl6.checked == false &&
        document.book_info.gl9.checked == false &&
        document.book_info.glO.checked == false ) {
        errorMsg += " - " + lang['EDIT_INFO_GRADE'] + "\n";
    }

    // Agent slot check
    var slot_array = new Array();
    slot_array['1'] = document.book_info.agent_slot_1.value;
    slot_array['2'] = document.book_info.agent_slot_2.value;
    slot_array['3'] = document.book_info.agent_slot_3.value;
    slot_array['4'] = document.book_info.agent_slot_4.value;
    slot_array['5'] = document.book_info.agent_slot_5.value;
    slot_array['6'] = document.book_info.agent_slot_6.value;
    slot_array['a'] = document.book_info.agent_slot_a.value;
    slot_array['b'] = document.book_info.agent_slot_b.value;
    slot_array['c'] = document.book_info.agent_slot_c.value;

    var slot_error = false;
    if (slot_array.count('1') > 1) { slot_error = true; }
    if (slot_array.count('2') > 1) { slot_error = true; }
    if (slot_array.count('3') > 1) { slot_error = true; }

    /*
    if ( (slot_array.count('1') == 0) || (slot_array.count('2') == 0) || (slot_array.count('3') == 0) ) {
       errorMsg += " - Please select three agents to use with this book.\n";
    }
    */

    if (slot_error) {
       errorMsg += " - " + lang['EDIT_INFO_SLOT'] + "\n";
    }

    if (errorMsg != "") {
        alert(lang['EDIT_INFO_ERROR'] + "\n\n" + errorMsg + "\n");
        return false;
    }

    return true;
}


function agentSelUpate(agentId) {
    var agentList = new Array('1','2','3','4','5','6','a','b','c');

    eval("var setValue = document.book_info.agent_slot_" + agentId + ".value");

    // Loop through all agent selection items
    for (var i=0; i < agentList.length; i++) {
        // Skip matching selection element
        if (agentList[i] != agentId) {
            eval("var tmpValue = document.book_info.agent_slot_" + agentList[i] + ".value");
            // If match, set previous selection to '--'
            if (setValue == tmpValue) {
                eval("document.book_info.agent_slot_" + agentList[i] + ".selectedIndex = 0");
            }
        }
    }
}


function checkTermInfo() {
    // Ignore term validation for 'Cancel' press
    if (document.getElementById('btnpress').value == "cancel") {
        history.back();
        return false;
    }

    // Make sure we have a non-empty term (after trimming all whitespace)
    var word_term = "";
    word_term = document.glossary_term.glossterm.value;
    word_term = word_term.trim();

    if (word_term == "") {
        // Show error message
        alert(lang['EDIT_GLOSSARY_TERM']);
        return false;
    }

    return true;
}

function noenter(e) {
    var key;

    if(window.event) {
        //IE
        key = window.event.keyCode;
    } else {
        // Firefox
        key = e.which;
    }
    if(key == 13) {
        return false;
    } else {
        return true;
    }
}

//------------------------------------------------------------------------------------------------
// Remove 'fancy' word formatting
/*
function cleanString(input) {
    var replacements = {
        "\xa0": " ",
        "\xa9": "(c)",
        "\xae": "(r)",
        "\xb7": "*",
        "\u2018": "'",
        "\u2019": "'",
        "\u201c": '"',
        "\u201d": '"',
        "\u2026": "...",
        "\u2002": " ",
        "\u2003": " ",
        "\u2009": " ",
        "\u2013": "-",
        "\u2014": "--",
        "\u2122": "(tm)"};
    var regex = {};
    for (key in replacements) {
        regex[key] = new RegExp(key, 'g');
    }

    var output = input.replace(regex[key], replacements[key]);

    return output;
}

UTF8 = {
	encode: function(s){
		for(var c, i = -1, l = (s = s.split("")).length, o = String.fromCharCode; ++i < l;
			s[i] = (c = s[i].charCodeAt(0)) >= 127 ? o(0xc0 | (c >>> 6)) + o(0x80 | (c & 0x3f)) : s[i]
		);
		return s.join("");
	},
	decode: function(s){
		for(var a, b, i = -1, l = (s = s.split("")).length, o = String.fromCharCode, c = "charCodeAt"; ++i < l;
			((a = s[i][c](0)) & 0x80) &&
			(s[i] = (a & 0xfc) == 0xc0 && ((b = s[i + 1][c](0)) & 0xc0) == 0x80 ?
			o(((a & 0x03) << 6) + (b & 0x3f)) : o(128), s[++i] = "")
		);
		return s.join("");
	}
};
*/

//------------------------------------------------------------------------------------------------
// String.trim() - simulate functionality via regex
String.prototype.trim = function() {
    // skip leading and trailing whitespace
    // and return everything in between
    var x = this;
    x = x.replace(/^\s*(.*)/, "$1");
    x = x.replace(/(.*?)\s*$/, "$1");
    return x;
}

// Array.in_array_minus(search_term) - Determine if item is contained within an array
// Snippet from:  http://andrew.hedges.name/experiments/javascript_optimization/in_array.html
// Further modifications found in comments at: http://code.mikebrittain.com/?p=8
Array.prototype.in_array_minus = function (search_term) {
   var i = this.length;
   do {
      if (this[i] === search_term) {
         return true;
      }
   } while (i--);
   return false;
}

// Based on in_array_minus - but it returns the key value
// Obviously this only works with contiguous non-associative arrays
Array.prototype.in_array_minus_key = function (search_term) {
   var i = this.length;
   do {
      if (this[i] === search_term) {
         return i;
      }
   } while (i--);
   return false;
}

// String.nl2br() - replace new-lines with <br />
String.prototype.nl2br = function() {
    var x = this;
    x = x.replace(/\n/gi, "<br />");
    return x;
}

// String.stripnl() - strip new-lines from text strings
String.prototype.stripnl = function() {
    var x = this;
    x = x.replace(/\n*/gi, "");
    x = x.replace(/\r*/gi, "");
    return x;
}

Array.prototype.count = function(element){
    var count = 0;

    // Works on string or mixed indexed arrays
    for (i in this) {
        if(this[i] == element){
            count += 1;
        }
    }
    /*
    // Only works for numeric indexed arrays
    for(var i = 0; i < this.length; i++){
        if(this[i] == element){
            count += 1;
        }
    }
    */
    return count;
}