//** Ajax Tabs Content script v2.0- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Updated Oct 21st, 07 to version 2.0. Contains numerous improvements
//** Updated Feb 18th, 08 to version 2.1: Adds a public "tabinstance.cycleit(dir)" method to cycle forward or backward between tabs dynamically. Only .js file changed from v2.0.
//** Updated April 8th, 08 to version 2.2:
//   -Adds support for expanding a tab using a URL parameter (ie: http://mysite.com/tabcontent.htm?tabinterfaceid=0) 
//   -Modified Ajax routine so testing the script out locally in IE7 now works 

var ddajaxtabssettings={}
ddajaxtabssettings.bustcachevar=1  //bust potential caching of external pages after initial request? (1=yes, 0=no)
ddajaxtabssettings.loadstatustext="<div style='text-align:center;margin-top:150px;font:normal 0.8em Verdana, Arial, Helvetica, sans-serif;'><img src='/misc/multimedia/loading.gif' /> Loading...</div>"

function ddajaxtabs(tabinterfaceid, contentdivid){
    this.tabinterfaceid=tabinterfaceid //ID of Tab Menu main container
    this.tabs=document.getElementById(tabinterfaceid).getElementsByTagName("a") //Get all tab links within container
    this.enabletabpersistence=true
    this.hottabspositions=[] //Array to store position of tabs that have a "rel" attr defined, relative to all tab links, within container
    this.currentTabIndex=0 //Index of currently selected hot tab (tab with sub content) within hottabspositions[] array
    this.contentdivid=contentdivid
    this.defaultHTML=""
    this.defaultIframe='<iframe src="about:blank" marginwidth="0" marginheight="0" frameborder="0" vspace="0" hspace="0" class="tabcontentiframe" style="width:100%; height:auto; min-height: 100px"></iframe>'
    this.defaultIframe=this.defaultIframe.replace(/<iframe/i, '<iframe name="'+"_ddajaxtabsiframe-"+contentdivid+'" ')
    this.revcontentids=[] //Array to store ids of arbitrary contents to expand/contact as well ("rev" attr values)
    this.selectedClassTarget="link" //keyword to indicate which target element to assign "selected" CSS class ("linkparent" or "link")
}

ddajaxtabs.connect=function(pageurl, tabinstance){
    var page_request = false
    var bustcacheparameter=""
    if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
        try {
            page_request = new ActiveXObject("Msxml2.XMLHTTP")
        }
        catch (e){
            try{
                page_request = new ActiveXObject("Microsoft.XMLHTTP")
            }
            catch (e){}
        }
    }
    else if (window.XMLHttpRequest) // if Mozilla, Safari etc
        page_request = new XMLHttpRequest()
    else
        return false
    var ajaxfriendlyurl=pageurl.replace(/^http:\/\/[^\/]+\//i, "http://"+window.location.hostname+"/")
    page_request.onreadystatechange=function(){
        ddajaxtabs.loadpage(page_request, pageurl, tabinstance)
        }
    if (ddajaxtabssettings.bustcachevar) //if bust caching of external page
        bustcacheparameter=(ajaxfriendlyurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
    page_request.open('GET', ajaxfriendlyurl+bustcacheparameter, true)
    page_request.send(null)
}

ddajaxtabs.loadpage=function(page_request, pageurl, tabinstance){
    var divId=tabinstance.contentdivid
    document.getElementById(divId).innerHTML=ddajaxtabssettings.loadstatustext //Display "fetching page message"
    if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
        document.getElementById(divId).innerHTML=page_request.responseText
        ddajaxtabs.ajaxpageloadaction(pageurl, tabinstance)
    }
}

ddajaxtabs.ajaxpageloadaction=function(pageurl, tabinstance){
    tabinstance.loadbottom(pageurl)  //call function to load bottom panel
}

ddajaxtabs.getCookie=function(Name){ 
    var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
    if (document.cookie.match(re)) //if cookie found
        return document.cookie.match(re)[0].split("=")[1] //return its value
    return ""
}

ddajaxtabs.setCookie=function(name, value){
    document.cookie = name+"="+value+";path=/" //cookie value is domain wide (path=/)
}

ddajaxtabs.prototype={

    expandit:function(tabid_or_position){ //PUBLIC function to select a tab either by its ID or position(int) within its peers
        this.cancelautorun() //stop auto cycling of tabs (if running)
        var tabref=""
        try{
            if (typeof tabid_or_position=="string" && document.getElementById(tabid_or_position).getAttribute("rel")) //if specified tab contains "rel" attr
                tabref=document.getElementById(tabid_or_position)
            else if (parseInt(tabid_or_position)!=NaN && this.tabs[tabid_or_position].getAttribute("rel")) //if specified tab contains "rel" attr
                tabref=this.tabs[tabid_or_position]
        }
        catch(err){
            alert("Invalid Tab ID or position entered!")
            }
        if (tabref!="") //if a valid tab is found based on function parameter
            this.expandtab(tabref) //expand this tab
    },

    cycleit:function(dir, autorun){ //PUBLIC function to move foward or backwards through each hot tab (tabinstance.cycleit('foward/back') )
        if (dir=="next"){
            var currentTabIndex=(this.currentTabIndex<this.hottabspositions.length-1)? this.currentTabIndex+1 : 0
        }
        else if (dir=="prev"){
            var currentTabIndex=(this.currentTabIndex>0)? this.currentTabIndex-1 : this.hottabspositions.length-1
        }
        if (typeof autorun=="undefined") //if cycleit() is being called by user, versus autorun() function
            this.cancelautorun() //stop auto cycling of tabs (if running)
        this.expandtab(this.tabs[this.hottabspositions[currentTabIndex]])
    },

    setpersist:function(bool){ //PUBLIC function to toggle persistence feature
        this.enabletabpersistence=bool
    },

    loadajaxpage:function(pageurl){ //PUBLIC function to fetch a page via Ajax and display it within the Tab Content instance's container
        ddajaxtabs.connect(pageurl, this)
    },

    loadiframepage:function(pageurl){ //PUBLIC function to fetch a page and load it into the IFRAME of the Tab Content instance's container
        this.iframedisplay(pageurl, this.contentdivid)
    },

    setselectedClassTarget:function(objstr){ //PUBLIC function to set which target element to assign "selected" CSS class ("linkparent" or "link")
        this.selectedClassTarget=objstr || "link"
    },

    getselectedClassTarget:function(tabref){ //Returns target element to assign "selected" CSS class to
        return (this.selectedClassTarget==("linkparent".toLowerCase()))? tabref.parentNode : tabref
    },

    urlparamselect:function(tabinterfaceid){
        var result=window.location.search.match(new RegExp(tabinterfaceid+"=(\\d+)", "i")) //check for "?tabinterfaceid=2" in URL
        return (result==null)? null : parseInt(RegExp.$1) //returns null or index, where index (int) is the selected tab's index
    },

    loadbottom:function(pageurl){
        var urlsplit = pageurl.split("?")
        var parameters = urlsplit[1];
        var pageurlbottom = 'multimedia/bottomPanel.html?' + parameters
        var page_request = false
        if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
            try {
                page_request = new ActiveXObject("Msxml2.XMLHTTP")
            }
            catch (e){
                try{
                    page_request = new ActiveXObject("Microsoft.XMLHTTP")
                }
                catch (e){}
            }
        }
        else if (window.XMLHttpRequest) // if Mozilla, Safari etc
            page_request = new XMLHttpRequest()
        else
            return false
        var ajaxfriendlyurl=pageurlbottom.replace(/^http:\/\/[^\/]+\//i, "http://"+window.location.hostname+"/")
        page_request.onreadystatechange=function(){
            document.getElementById('bottomPanel').innerHTML = "<div style='text-align:center;font:normal 0.8em Verdana, Arial, Helvetica, sans-serif;'><img src='/misc/multimedia/loading.gif' /> Loading...</div>";
            if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
                document.getElementById('bottomPanel').innerHTML=page_request.responseText
                            initPagination();
        }

        page_request.open('GET', ajaxfriendlyurl, true)
        page_request.send(null)

        urlsplit = pageurl.split("=")
        var vf = urlsplit[1];

        $("#embed_code").val('<object width="480" height="360" data="http://flowplayer.org/swf/flowplayer-3.1.2.swf?0.3968513055819596" type="application/x-shockwave-flash"><param name="movie" value="http://flowplayer.org/swf/flowplayer-3.1.2.swf?0.3968513055819596" /><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="flashvars" value=\'config={"clip":{"url":"http://www.unodc.org' + vf + '", "scaling":"orig", "autoPlay":false, "autoBuffering":true},"canvas":{"backgroundColor":"#000000"},"plugins":{"audio":"url:http://www.unodc.org/misc/flowplayer/flowplayer.audio-3.1.0.swf"}}\' /></object>');

        return true
    },

    expandtab:function(tabref){
        var relattrvalue=tabref.getAttribute("rel")
        //Get "rev" attr as a string of IDs in the format ",john,george,trey,etc," to easy searching through
        var associatedrevids=(tabref.getAttribute("rev"))? ","+tabref.getAttribute("rev").replace(/\s+/, "")+"," : ""
        if (relattrvalue=="#default")
            document.getElementById(this.contentdivid).innerHTML=this.defaultHTML
        else if (relattrvalue=="#iframe")
            this.iframedisplay(tabref.getAttribute("href"), this.contentdivid)
        else
            ddajaxtabs.connect(tabref.getAttribute("href"), this)
        this.expandrevcontent(associatedrevids)
        for (var i=0; i<this.tabs.length; i++){ //Loop through all tabs, and assign only the selected tab the CSS class "selected"
            this.getselectedClassTarget(this.tabs[i]).className=(this.tabs[i].getAttribute("href")==tabref.getAttribute("href"))? "selected" : ""
        }
        if (this.enabletabpersistence) //if persistence enabled, save selected tab position(int) relative to its peers
            ddajaxtabs.setCookie(this.tabinterfaceid, tabref.tabposition)
        this.setcurrenttabindex(tabref.tabposition) //remember position of selected tab within hottabspositions[] array
    },

    iframedisplay:function(pageurl, contentdivid){
        if (typeof window.frames["_ddajaxtabsiframe-"+contentdivid]!="undefined"){
            try{
                delete window.frames["_ddajaxtabsiframe-"+contentdivid]
            } //delete iframe within Tab content container if it exists (due to bug in Firefox)
            catch(err){}
        }
        document.getElementById(contentdivid).innerHTML=this.defaultIframe
        window.frames["_ddajaxtabsiframe-"+contentdivid].location.replace(pageurl) //load desired page into iframe
    },


    expandrevcontent:function(associatedrevids){
        var allrevids=this.revcontentids
        for (var i=0; i<allrevids.length; i++){ //Loop through rev attributes for all tabs in this tab interface
            //if any values stored within associatedrevids matches one within allrevids, expand that DIV, otherwise, contract it
            document.getElementById(allrevids[i]).style.display=(associatedrevids.indexOf(","+allrevids[i]+",")!=-1)? "block" : "none"
        }
    },

    setcurrenttabindex:function(tabposition){ //store current position of tab (within hottabspositions[] array)
        for (var i=0; i<this.hottabspositions.length; i++){
            if (tabposition==this.hottabspositions[i]){
                this.currentTabIndex=i
                break
            }
        }
    },

    autorun:function(){ //function to auto cycle through and select tabs based on a set interval
        this.cycleit('next', true)
    },

    cancelautorun:function(){
        if (typeof this.autoruntimer!="undefined")
            clearInterval(this.autoruntimer)
    },

    init:function(automodeperiod){
        var persistedtab=ddajaxtabs.getCookie(this.tabinterfaceid) //get position of persisted tab (applicable if persistence is enabled)
        var selectedtab=-1 //Currently selected tab index (-1 meaning none)
        var selectedtabfromurl=this.urlparamselect(this.tabinterfaceid) //returns null or index from: tabcontent.htm?tabinterfaceid=index
        this.automodeperiod=automodeperiod || 0
        this.defaultHTML=document.getElementById(this.contentdivid).innerHTML
        for (var i=0; i<this.tabs.length; i++){
            this.tabs[i].tabposition=i //remember position of tab relative to its peers
            if (this.tabs[i].getAttribute("rel")){
                var tabinstance=this
                this.hottabspositions[this.hottabspositions.length]=i //store position of "hot" tab ("rel" attr defined) relative to its peers
                this.tabs[i].onclick=function(){
                    tabinstance.expandtab(this)
                    tabinstance.cancelautorun() //stop auto cycling of tabs (if running)
                    return false
                }
                if (this.tabs[i].getAttribute("rev")){ //if "rev" attr defined, store each value within "rev" as an array element
                    this.revcontentids=this.revcontentids.concat(this.tabs[i].getAttribute("rev").split(/\s*,\s*/))
                }
                if (selectedtabfromurl==i || this.enabletabpersistence && selectedtab==-1 && parseInt(persistedtab)==i || !this.enabletabpersistence && selectedtab==-1 && this.getselectedClassTarget(this.tabs[i]).className=="selected"){
                    selectedtab=i //Selected tab index, if found
                }
            }
        } //END for loop
        if (selectedtab!=-1) //if a valid default selected tab index is found
            this.expandtab(this.tabs[selectedtab]) //expand selected tab (either from URL parameter, persistent feature, or class="selected" class)
        else //if no valid default selected index found
            this.expandtab(this.tabs[this.hottabspositions[0]]) //Just select first tab that contains a "rel" attr
        if (parseInt(this.automodeperiod)>500 && this.hottabspositions.length>1){
            this.autoruntimer=setInterval(function(){
                tabinstance.autorun()
                }, this.automodeperiod)
        }
    } //END int() function

} //END Prototype assignment



/**
 * This jQuery plugin displays pagination links inside the selected elements.
 *
 * @author Gabriel Birke (birke *at* d-scribe *dot* de)
 * @version 1.2
 * @param {int} maxentries Number of entries to paginate
 * @param {Object} opts Several options (see README for documentation)
 * @return {Object} jQuery Object
 */

jQuery.fn.pagination = function(maxentries, opts){
    opts = jQuery.extend({
        items_per_page:10,
        num_display_entries:10,
        current_page:0,
        num_edge_entries:0,
        link_to:"#",
        prev_text:"Prev",
        next_text:"Next",
        ellipse_text:"...",
        prev_show_always:true,
        next_show_always:true,
        callback:function(){
            return false;
        }
    },opts||{});

    return this.each(function() {
        /**
		 * Calculate the maximum number of pages
		 */
        function numPages() {
            return Math.ceil(maxentries/opts.items_per_page);
        }

        /**
		 * Calculate start and end point of pagination links depending on
		 * current_page and num_display_entries.
		 * @return {Array}
		 */
        function getInterval()  {
            var ne_half = Math.ceil(opts.num_display_entries/2);
            var np = numPages();
            var upper_limit = np-opts.num_display_entries;
            var start = current_page>ne_half?Math.max(Math.min(current_page-ne_half, upper_limit), 0):0;
            var end = current_page>ne_half?Math.min(current_page+ne_half, np):Math.min(opts.num_display_entries, np);
            return [start,end];
        }

        /**
		 * This is the event handling function for the pagination links.
		 * @param {int} page_id The new page number
		 */
        function pageSelected(page_id, evt){
            current_page = page_id;
            drawLinks();
            var continuePropagation = opts.callback(page_id, panel);
            if (!continuePropagation) {
                if (evt.stopPropagation) {
                    evt.stopPropagation();
                }
                else {
                    evt.cancelBubble = true;
                }
            }
            return continuePropagation;
        }

        /**
		 * This function inserts the pagination links into the container element
		 */
        function drawLinks() {
            panel.empty();
            var interval = getInterval();
            var np = numPages();
            // This helper function returns a handler function that calls pageSelected with the right page_id
            var getClickHandler = function(page_id) {
                return function(evt){
                    return pageSelected(page_id,evt);
                }
            }
            // Helper function for generating a single link (or a span tag if it's the current page)
            var appendItem = function(page_id, appendopts){
                page_id = page_id<0?0:(page_id<np?page_id:np-1); // Normalize page id to sane value
                appendopts = jQuery.extend({
                    text:page_id+1,
                    classes:""
                }, appendopts||{});
                if(page_id == current_page){
                    var lnk = jQuery("<span class='current'>"+(appendopts.text)+"</span>");
                }
                else
                {
                    var lnk = jQuery("<a>"+(appendopts.text)+"</a>")
                    .bind("click", getClickHandler(page_id))
                    .attr('href', opts.link_to.replace(/__id__/,page_id));


                }
                if(appendopts.classes){
                    lnk.addClass(appendopts.classes);
                }
                panel.append(lnk);
            }
            // Generate "Previous"-Link
            if(opts.prev_text && (current_page > 0 || opts.prev_show_always)){
                appendItem(current_page-1,{
                    text:opts.prev_text,
                    classes:"prev"
                });
            }
            // Generate starting points
            if (interval[0] > 0 && opts.num_edge_entries > 0)
            {
                var end = Math.min(opts.num_edge_entries, interval[0]);
                for(var i=0; i<end; i++) {
                    appendItem(i);
                }
                if(opts.num_edge_entries < interval[0] && opts.ellipse_text)
                {
                    jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
                }
            }
            // Generate interval links
            for(var i=interval[0]; i<interval[1]; i++) {
                appendItem(i);
            }
            // Generate ending points
            if (interval[1] < np && opts.num_edge_entries > 0)
            {
                if(np-opts.num_edge_entries > interval[1]&& opts.ellipse_text)
                {
                    jQuery("<span>"+opts.ellipse_text+"</span>").appendTo(panel);
                }
                var begin = Math.max(np-opts.num_edge_entries, interval[1]);
                for(var i=begin; i<np; i++) {
                    appendItem(i);
                }

            }
            // Generate "Next"-Link
            if(opts.next_text && (current_page < np-1 || opts.next_show_always)){
                appendItem(current_page+1,{
                    text:opts.next_text,
                    classes:"next"
                });
            }
        }

        // Extract current_page from options
        var current_page = opts.current_page;
        // Create a sane value for maxentries and items_per_page
        maxentries = (!maxentries || maxentries < 0)?1:maxentries;
        opts.items_per_page = (!opts.items_per_page || opts.items_per_page < 0)?1:opts.items_per_page;
        // Store DOM element for easy access from all inner functions
        var panel = jQuery(this);
        // Attach control functions to the DOM element
        this.selectPage = function(page_id){
            pageSelected(page_id);
        }
        this.prevPage = function(){
            if (current_page > 0) {
                pageSelected(current_page - 1);
                return true;
            }
            else {
                return false;
            }
        }
        this.nextPage = function(){
            if(current_page < numPages()-1) {
                pageSelected(current_page+1);
                return true;
            }
            else {
                return false;
            }
        }
        // When all initialisation is done, draw the links
        drawLinks();
        // call callback function
        opts.callback(current_page, this);
    });
}

function pageselectCallback(page_index, jq){
    var new_content = $('#hiddenresult div.result:eq('+page_index+')').clone();
    $('#Searchresult').empty().append(new_content);
    return false;
}

function initPagination() {
    var num_entries = $('#hiddenresult div.result').length;
    // Create pagination element
    $("#Pagination").pagination(num_entries, {
        num_edge_entries: 2,
        callback: pageselectCallback,
        items_per_page:1,
        next_show_always:false,
        prev_show_always:false
    });
}