/* Initialisation */
jQuery.noConflict();
jQuery(document).ready(function(){
    jQuery(".png").supersleight(); /* Fix transparency for pngs in IE6 */
    jQuery(".tab_component").tabs();
    jQuery(".vertical_tab_component").tabs();
    jQuery("table").formatTable();
    jQuery(".concertina_component").concertina();
    jQuery(".faq_component").concertina({
        showFirstDetailOnLoad: false
    });
    jQuery("div.detail_table").detailTable();
    jQuery(".masthead_component .search form").globalSearch({
        setInitialText: true
    });
    jQuery(".main_content form:has(.search)").globalSearch();
    jQuery(".toggleSet").toggleCheckboxes();
    jQuery(".utilities").utilities();
    jQuery(".flash").flash();
    jQuery(".news_list_component").news_list();
    jQuery(".masthead_component .quick_links:visible").quickLinks();
    jQuery(".nav").hoverFix(); /* Apply JS fix for IE6 not supporting :hover */
    
    // Just for the Sitepublisher Edit mode to change the grey background color 
    // because iframes layout ignore the white background of the main layout
    // This will do nothing in other case than Edit mode
    jQuery("body").changeBackground();
});
/* tablesorter settings */
jQuery.tablesorter.defaults.sortList = [[0, 1]]; //sort by first column descending
jQuery.tablesorter.defaults.widgets = ['zebra'];
jQuery.tablesorter.defaults.cssAsc = "ascending";
jQuery.tablesorter.defaults.cssDesc = "descending";
jQuery.tablesorter.addParser({
    id: 'ukdate',
    is: function(s){
        return false;
    },
    format: function(s){
        return new Date(s).getTime();
    },
    type: 'numeric'
});
/* end tablesorter settings */
/* globalSearch */
(function($){
    $.fn.globalSearch = function(options){
        var defaults = {
            setInitialText: false,
            initialText: "Enter your search text",
            allowSubmit: true
        };
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            var search_field = $(".search_field", obj);
            var button = $("input[type='submit']", obj);
            search_field.bind("keypress", function(e){
                var keycode = 0;
                if (e.charCode) {
                    keycode = e.charCode;
                } else if (e.keyCode) {
                    keycode = e.keyCode;
                } else if (e.which) {
                    keycode = e.which;
                }
                if (keycode === 13) {
                    e.preventDefault();
                    button.trigger("click");
                }
            });
            obj.bind("submit", function(e){
                if (search_field.attr("value") == options.initialText) {
                    search_field.attr("value", "");
                }
            });
            if (options.setInitialText) {
                search_field.bind("click", function(e){
                    $(this).attr("value", "");
                });
                if (search_field.attr("value") == "") {
                    search_field.attr("value", options.initialText);
                }
            }
        });
    };
})(jQuery);
/* end globalSearch */
/* toggleCheckboxes */
(function($){
    $.fn.toggleCheckboxes = function(){
        var fieldset = $(this).parents("fieldset:first");
        var relatedCheckboxes = $("input[type='checkbox']", fieldset).not(".toggleSet");
        $(this).bind("click", function(e){
            // Select all related boxes
            if (this.checked) {
                $.each((relatedCheckboxes), function(){
                    $(this).attr("checked", true);
                });
            }
        });
        // Deselect toggle box if any related box touched
        $.each((relatedCheckboxes), function(){
            $(this).bind("click", function(e){
                var fieldset = $(this).parents("fieldset:first");
                $(".toggleSet", fieldset).attr("checked", false);
            });
        });
    };
})(jQuery);
/* end toggleCheckboxes */
/* detailTable */
(function($){
    $.fn.detailTable = function(){
        var defaults = {};
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            $(".feature_component", obj).concertina({
                showFirstDetailOnLoad: true,
                clickToToggle: false
            });
            // need to trigger a click event on the appropriate toggle-classed element when any cell of the table is clicked
            var i = 0;
            $.each($("tbody > tr", obj), function(){
                var target = ".toggle:eq(" + i + ")";
                var row = $(this);
                $.each($("td", row), function(){
                    var cell = $(this);
                    cell.addClass("link");
                    cell.bind("click", function(e){
                        $(target, obj).trigger("click");
                    });
                });
                // set the contents of the first column to never wrap
                $.each($("td:eq(0)", row), function(){
                    $(this).addClass("nowrap");
                });
                i++;
            });
        });
    };
})(jQuery);
/* end detailTable */
/* concertina */
(function($){
    $.fn.concertina = function(options){
        var defaults = {
            toggleCssClass: "toggle",
            collapsedCssClass: "inactive",
            clickToToggle: true,
            showFirstDetailOnLoad: true,
            collapseTitleText: "Click to collapse",
            expandTitleText: "Click to expand",
            addTitleText: true
        };
        options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            obj.collapseAll = collapseAll;
            obj.collapseAll();
            if (options.showFirstDetailOnLoad) {
                $("." + options.toggleCssClass + ":first", obj).parent().removeClass(options.collapsedCssClass);
            }
            $.each($("." + options.toggleCssClass, obj), function(){
                //collapse all layers then set selected layer to opposite of status when clicked
                $(this).bind("click", function(e){
                    var collapsed = $(this).parent().hasClass(options.collapsedCssClass);
                    obj.collapseAll();
                    if (collapsed || !options.clickToToggle) {
                        $(this).parent().removeClass(options.collapsedCssClass);
                        if(options.addTitleText) {
                            $(this).attr("title", options.collapseTitleText);
                        }
                    }
                });
            });
        });
        function collapseAll(){
            var obj = $(this);
            $.each($("." + options.toggleCssClass, obj), function(){
                $(this).parent().addClass("inactive");
                if(options.addTitleText) {
                    $(this).attr("title", options.expandTitleText);
                }
            });
        };
        function makeAllLabelsInactive(){
            var obj = $(this);
            $.each($(".tablist li", obj), function(){
                $(this).removeClass(options.selectedCssClass);
            });
        };
    };
})(jQuery);
/* end concertina */
/* tabs */
(function($){
    $.fn.tabs = function(options){
        var defaults = {
            collapsedCssClass: "inactive",
            selectedCssClass: "selected",
            toggleCssClass: "toggle",
            vertTabClass: "vertical_tab_component",
            tabOverHang: 10,
            //Defaults used in Concertina
            clickToToggle: false,
            addTitleText: false
        };
        options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            var firstToggle = $(".tablist li:first", obj);
            firstToggle.addClass(options.selectedCssClass);
            //Store current toggle
            obj.selectedTogg = firstToggle;
            //Pass in all the options to the concertina as it will only use the relevant ones
            $(".tabs", obj).concertina(options);
            // need to trigger a click event on the appropriate toggle-classed element when the first column of the table is clicked
            $.each($(".tablist li", obj), function( iter ){
                var target = "." + options.toggleCssClass +":eq(" + iter + ")";
                $(this).bind("click", function(e){
                    var togg = $(this);
                    obj.selectedTogg.removeClass(options.selectedCssClass)
                    togg.addClass(options.selectedCssClass);
                    obj.selectedTogg = togg;
                    var ele = $(target, obj);
                    ele.trigger("click");
                    if (obj.hasClass(options.vertTabClass)) {
                        var diff = $(this).outerHeight() + $(this).offset().top - $(this).css("border-bottom-width").replace("px", "") - ele.parent().offset().top - ele.parent().outerHeight() - $(".tabs", obj).css("padding-bottom").replace("px", "");
                        if (diff > 0) {
                            diff = diff + options.tabOverHang;
                            ele.parent().height(ele.parent().height() + diff);
                        }
                    }
                });
            });
            $(".tablist li:first", obj).trigger("click");
        });
    };
})(jQuery);
/* end tabs */
/* utilities */
(function($){
    $.fn.utilities = function(){
        var defaults = {};
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            $(".printLink", obj).bind("click", function(e){
                window.print();
            });
            $(".emailLink", obj).attr("href", "mailto:?subject=" + document.title + "&body=" + window.location.href);
            $(".bookmarkLink", obj).bind("click", function(e){
                var url = window.location.href;
                var title = document.title;
                if (window.sidebar) {
                    window.sidebar.addPanel(title, url, "");
                } else if (document.all) {
                    window.external.AddFavorite(url, title);
                } else {
                    alert("Sorry, your browser doesn't support bookmark links");
                }
            });
        });
    };
})(jQuery);
/* end utilities */
/* flash */
(function($){
    $.fn.flash = function(){
        return this.each(function(){
            var obj = $(this);
            if (DetectFlashVer(9, 0, 0)) {
                $(".flash_content", obj).addClass("inactive");
            } else {
                $("object", obj).addClass("inactive");
            }
        });
    };
})(jQuery);
/* end flash */
/* news_list */
(function($){
    $.fn.news_list = function(){
        var defaults = {};
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            
            // Declare available functions
            obj.populateAvailableYearsInSelect = populateAvailableYearsInSelect;
            obj.drawLines = drawLines;
            
            // Call functions
            obj.populateAvailableYearsInSelect();
            obj.drawLines('');
            $(".news_table thead > tr:first > th:eq(1)", obj).unbind("click");
            $(".news_table thead > tr:first > th:eq(2)", obj).unbind("click");
            // trigger sort twice to get around IE7 rendering bug
            $(".news_table thead > tr:first > th:eq(0)", obj).trigger("click");
            $(".news_table thead > tr:first > th:eq(0)", obj).trigger("click");
            $(".news_table", obj).removeClass('inactive');
            
            $(".selected_year", obj).bind("change", function(e){
                var selectedDate = $('.selected_year option:selected', obj).val();
                obj.drawLines(selectedDate);
            });
        });
        function populateAvailableYearsInSelect(obj){
            var obj = $(this);
            var allDates = new Hash();
            
            $.each($(".news_table tbody  tr", obj), function(){
                var obj = $(this);
                $("td:eq(0)", obj).addClass("nowrap");
                
                var firstCell = $("td:eq(0)", obj)[0];
                var dateFull = new Date(firstCell.innerHTML);
                allDates.setItem(dateFull.getFullYear(), dateFull.getFullYear());
            });
            
            var sortedAvailableDates = new Array();
            for (var yearDate in allDates.items) {
                sortedAvailableDates.push(yearDate);
            };
            
            sortedAvailableDates.sort(function(a, b){
                return b - a;
            });
            $(".selected_year > option:first", obj).attr("value", "");
            //TODO: Review if 'i += 1' is correct or if its a typo
            for (var i = 0; i < sortedAvailableDates.length; i += 1) {
                var option = document.createElement('option');
                option.value = sortedAvailableDates[i];
                option.innerHTML = sortedAvailableDates[i];
                $(".selected_year", obj).append(option);
            };
        };
        function drawLines(selectedYear){
            var obj = $(this);
            var myDate = new Date();
            var limitDate = new Date();
            limitDate.setMonth(myDate.getMonth() - 6);
            
            $.each($(".news_table tbody  tr", obj), function(){
                var obj = $(this);
                var firstCell = $("td:eq(0)", obj)[0];
                var dateFull = new Date(firstCell.innerHTML);
                if (selectedYear.toLowerCase() == "") {
                    if (limitDate.getTime() <= dateFull.getTime()) {
                        obj.show();
                        $(".news_description", obj).show();
                    } else {
                        obj.hide();
                    }
                } else {
                    var dateFull = new Date(firstCell.innerHTML);
                    if (dateFull.getFullYear() == selectedYear.toLowerCase()) {
                        obj.show();
                        $(".news_description", obj).hide();
                    } else {
                        obj.hide();
                    }
                }
            });
        };
        function Hash(){
            this.length = 0;
            this.items = new Array();
            for (var i = 0; i < arguments.length; i += 2) {
                if (typeof(arguments[i + 1]) != 'undefined') {
                    this.items[arguments[i]] = arguments[i + 1];
                    this.length++;
                }
            }
            this.removeItem = function(in_key){
                var tmp_value;
                if (typeof(this.items[in_key]) != 'undefined') {
                    this.length--;
                    var tmp_value = this.items[in_key];
                    delete this.items[in_key];
                }
                
                return tmp_value;
            }
            this.getItem = function(in_key){
                return this.items[in_key];
            }
            this.setItem = function(in_key, in_value){
                if (typeof(in_value) != 'undefined') {
                    if (typeof(this.items[in_key]) == 'undefined') {
                        this.length++;
                    }
                    this.items[in_key] = in_value;
                }
                return in_value;
            }
            this.hasItem = function(in_key){
                return typeof(this.items[in_key]) != 'undefined';
            }
        };
    };
})(jQuery);
/* end news_list */
/* Quick links */
(function($){
    $.fn.quickLinks = function(options){
        var defaults = {
            inactiveCssClass: "inactive",
            overlayCssClass: "overlay"
        };
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            var header = $("h4", obj);
            var list = $("ul", obj);
            list.addClass(options.overlayCssClass);
            list.addClass(options.inactiveCssClass);
            header.bind("click", function(e){
                if (list.hasClass(options.inactiveCssClass)) {
                    list.removeClass(options.inactiveCssClass);
                } else {
                    list.addClass(options.inactiveCssClass);
                }
            });
        });
    };
})(jQuery);
/* end quick links */
/* change background color in edit mode for sitePublisher pages */
(function($){
    $.fn.changeBackground = function(){
        var defaults = {};
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            var regexp = /pagePalette/i;
            if (document.referrer.match(regexp)) {
                obj.css("background", "#FFF");
            };
        });
    };
})(jQuery);
/* end change background */
/* IE6 nav hover fix */
/* IE6 does not allow :hover to be used on tags other then <a> so need to simulate this using js */
(function($){
    $.fn.hoverFix = function(){
        return this.each(function(){
            var obj = $(this);
            $('li', obj).hover(function(){
                $(this).addClass('over');
            }, function(){
                $(this).removeClass('over');
            });
            $('li.active a', obj).addClass("active");
        });
    };
})(jQuery);
/* end IE6 nav hover fix */
/* set table banding and sorting */
(function($){
    $.fn.formatTable = function(){
        var defaults = {};
        var options = $.extend(defaults, options);
        return this.each(function(){
            var obj = $(this);
            if (obj.hasClass("sortable")) {
                obj.tablesorter();
            } else {
                var i = 0;
                if ($("thead > tr", obj).length > 0) {
                    var rows = $("tbody > tr", obj);
                    jQuery.each(rows, function(){
                        if (i % 2 == 0) {
                            $(this).removeClass("alt");
                        } else {
                            $(this).addClass("alt");
                        }
                        i++;
                    });
                } else {
                    var rows = $("tr", obj);
                    jQuery.each(rows, function(){
                        if (i % 2 == 0) {
                            $(this).addClass("alt");
                        } else {
                            $(this).removeClass("alt");
                        }
                        i++;
                    });
                }
            }
        });
    };
})(jQuery);
/* end set table banding and sorting */