/*
	EBI scripts (utilizing jQuery 1.4.4)
*/

/* ---------- Initialize page ---------- */
jQuery.noConflict();
jQuery(function ($) {
	$(document).ready(function () {

		// Stripe table row colors
		$("table.data, table.search-results").find("tr:nth-child(even)").not(".even").not(".odd").addClass("even");
		$("table.data, table.search-results").find("tr:nth-child(odd)").not(".even").not(".odd").addClass("odd");


		// Insert external and document icons
		$("a.external:not(:has(img))").append('<img class="docicon" src="/images/icon_external.png" width="13" height="13" alt=" (External Site Link)" title="External Site Link" />');
		$("a.pdf:not(:has(img)), a[href$=pdf]:not(:has(img))").append('<img class="docicon" src="/images/icon_pdf.gif" width="12" height="14" alt=" (PDF)" />');
		$("a.word:not(:has(img)), a[href$=doc]:not(:has(img)), a[href$=docx]:not(:has(img))").append('<img class="docicon" src="/images/icon_word.gif" width="12" height="14" alt=" (Word Document)" />');
		$("a.excel:not(:has(img)), a[href$=xls]:not(:has(img)), a[href$=xlsx]:not(:has(img))").append('<img class="docicon" src="/images/icon_excel.gif" width="12" height="14" alt=" (Excel Spreadsheet)" />');
		$("a.powerpoint:not(:has(img)), a[href$=ppt]:not(:has(img)), a[href$=pptx]:not(:has(img))").append('<img class="docicon" src="/images/icon_powerpoint.gif" width="12" height="14" alt=" (Powerpoint Presentation)" />');
		$("a.text:not(:has(img)), a[href$=txt]:not(:has(img)), a[href$=rtf]:not(:has(img))").append('<img class="docicon" src="/images/icon_text.gif" width="12" height="14" alt=" (Text Document)" />');


		// Column child CSS3 fix
		$(".columns>.col:first-child").addClass("first-child");
		$(".columns.three>.col:nth-child(2)").addClass("middle-child");
		$(".columns>.col:last-child:not(:first-child):not('.middle-child')").addClass("last-child");


		// Multiselect form fields (requires jquery.multiSelect)
		if (typeof $("").multiSelect === "function") {
			$("select.form-multiselect").multiSelect();
		}

		// Overlays
		initOverlays();

		// Collapsible blocks
		initCollapsibles();

		// Tabs and link lists
		initTabs();

		// Form filters
		initFilters();

		// Redirect select boxes
		initRedirects();

		// Article toolbar
		initArticleTools();

		// Popup Calendar
		initCalendar();

		// Search results
		initSearchResults();



		// Clear search field default values
		$("input[type=search]").focus(function () {
			if (this.value == this.defaultValue) {
				$(this).val("");
			}
		}).blur(function () {
			if (this.value == "") {
				$(this).val(this.defaultValue);
			}
		});



		// Delete button confirmations
		$("a[rel=confirmdelete]").click(function () {
			return confirm("Are you sure you want to delete this item?");
		});



		// Mac-only font rendering differences
		if (navigator.platform.indexOf("Mac") == 0) {
			$("html").addClass("os-mac");
		}


		// IE-only bug fixes and helpers
		if ($.browser.msie && parseInt($.browser.version) < 9) {

			/* CSS3 last-child fix for blocks */
			$(".block > *:last-child, .block > ul:last-child > li:last-child, .sidebox > *:last-child, .overlay > *.last-child, .right-col > *:last-child, .coloredbox > *:last-child, #checkout-nav > ul > li:last").addClass("last-child");

			/* <hr> wrapper for background image */
			$("hr").each(function () {
				$(this).wrap('<div class="' + $(this).attr("class") + ' hr"></div>');
			});

			// IE6 PNG fix
			if (parseInt($.browser.version) < 7) {
				iepngfix();
			}
		}

		//Add Red highlight for any control that is not valid
		if (typeof Page_IsValid != 'undefined') {
			if (!Page_IsValid) {
				var i = 0;
				for (; i < Page_Validators.length; i++) {
					if (!Page_Validators[i].isvalid) {
						$("#" + Page_Validators[i].controltovalidate).addClass("error");
					}
				}
			}
		}

		checkShippingBillingMatches();

		$(".address-shipping input:text, .address-shipping select, .address-billing input:text, .address-billing select").change(function () {
			checkShippingBillingMatches();
		});

		$("#chkMatchShippingAndBilling").click(function () {
			var checked = $(this).is(':checked');
			$(".address-shipping").each(function () {
				var shippingBox = $(this).find("input:text, select");
				var fieldClass = $(this).attr('class').split(/\s+/)[1];
				var billingParent = $(".address-billing." + fieldClass);
				var billingBox = billingParent.find("input:text, select");
				if (checked) {
					shippingBox.val(billingBox.val());
				}
				else {
					if (shippingBox.val() == billingBox.val()) {
						shippingBox.val("");
					}
				}
			});
		});
	});




	// Initialize overlay support
	function initOverlays() {

		// Overlays are activated by links with target="overlay" and href="#the-overlay-elements-id"
		// The actual contents should be located at the bottom of the page within the <div id="overlays"> section,
		//   and have the corresponding class attribute to the link (not id for Sitecore compatibility)

		// Use top.window and top.window.document to show overlays on outer windows, not within iframes
		var mainwindow = (top === window) ? window : top.window;


		// Move any stray overlays to within top #overlay wrapper
		$(".overlay").each(function () {

			if (top !== window) {
				// Moved iframed overlays to parent
				$(this).appendTo($("#overlays", mainwindow.document));

			} else if ($(this).parents("#overlays").length == 0) {
				// If not already within the #overlay container
				$(this).appendTo($("#overlays"));
			}
		});


		// Auto-inject the close link
		$("#overlays .overlay").prepend('<a href="#" class="overlay-close" title="Close"></a>');

		// Open overlays using target=overlay attribute
		$("a[target=overlay]").click(function () {

			var overlayname = $(this).attr("href").replace("#", ".");

			// Find the correct element based on the anchor link
			var $targetoverlay = $(overlayname);

			// If within iframe, check parent window
			if ($targetoverlay.length == 0 && top !== window) {
				$targetoverlay = $(overlayname, mainwindow.document);
			}

			if ($targetoverlay.length > 0) {

				// Reveal the overlays
				$targetoverlay.show();

				$("#overlays-cover", mainwindow.document).fadeTo("normal", .75);
				$("#overlays", mainwindow.document).fadeIn("normal");

				// Set height to maximum 85% window, accounting for padding
				var overlaypadding = parseInt($targetoverlay.outerHeight() - $targetoverlay.height());
				$targetoverlay.css("max-height", parseInt(($(mainwindow).height() - overlaypadding) * .85));

				// Horizontally center on screen (must call this after the overlay is visible)
				$targetoverlay.css("left", parseInt($(mainwindow).width() - $targetoverlay.outerWidth()) / 2);

				// Vertically center on screen
				$targetoverlay.css("top", parseInt(($(mainwindow).height() - $targetoverlay.outerHeight()) / 2));

				return false;
			}
		});


		// Re-center overlay if window resizes
		$(mainwindow).resize(function () {
			if ($("#overlays").length == 1 && $("#overlays-cover").is(":visible")) {
				var $targetoverlay = $("#overlays > .overlay:visible");

				if ($targetoverlay.length > 0) {
					// Same calculations as above
					var overlaypadding = parseInt($targetoverlay.outerHeight() - $targetoverlay.height());
					$targetoverlay.css("max-height", parseInt(($(window).height() - overlaypadding) * .85));

					$targetoverlay.css("left", parseInt($(window).width() - $targetoverlay.outerWidth()) / 2);
					$targetoverlay.css("top", parseInt(($(window).height() - $targetoverlay.outerHeight()) / 2));
				}
			}
		});


		// Close on cover click
		$("#overlays-cover, #overlays a.overlay-close, #overlays a[rel=close]").click(function () {
			$("#overlays-cover, #overlays").fadeOut("normal", function () {
				// Hide contents
				$("#overlays .overlay:visible").hide();
			});
			var thisElement = $(this)
			var parentElement = thisElement.parent(".overlay");
			parentElement.trigger('lightboxClosed');

			return false;
		});



		// Login overlay forgot password link
		$loginoverlay = $(".overlay-login");
		if ($loginoverlay.length > 0) {
			$(".forgotpasswordbox", $loginoverlay).hide(); // Hide password box onload

			$("a.forgotpassword", $loginoverlay).click(function () {
				$(".forgotpasswordbox", $loginoverlay).slideDown("fast", function () {
					// Vertically center again
					$loginoverlay.animate({ top: parseInt(($(window).height() - $loginoverlay.outerHeight()) / 2) }, "fast");
				});

				$(this).hide(); // Hide toggle link
			});
		}
	}




	// Redirect select boxes (uses class="redirect")
	function initRedirects() {

		$("select.redirect").live("change", function () {
			var url = $(this).val();
			if (url != "" && url != window.location.pathname && url != window.location.href) {
				window.location = url;
			}
			return false;
		});
	}



	// Initialize collapsible blocks
	function initCollapsibles($context) {

		if (!$context) { $context = $("body"); }

		// Use <div class="block collapsible"> for expanded boxes
		//     <div class="block collapsible collapsed"> for collapsed boxes

		// Wrap a div around the collapsible objects
		$(".collapsible", $context).wrapInner('<div class="collapsed-content"></div>')

		// Except for heading and subtitle
		$(".collapsed-content", $context).each(function () {
			$block = $(this).parent();
			$block.prepend($("h2, .subtitle", this));
		});


		// Hide collapsed content
		$(".collapsible.collapsed > .collapsed-content", $context).hide();


		// Auto-inject the collapse link
		$(".collapsible", $context).prepend('<a href="#" class="button-collapse" title="Hide"></a>');

		// Adjust for collapsed lists
		$(".collapsible.collapsed a.button-collapse", $context).attr("title", "Show");

		// Collapse action (heading with href="#" or collapsible button)
		$("a.button-collapse", $context).click(function () {
			$block = $(this).parent(".collapsible");
			$block.toggleClass("collapsed")
			.find(".collapsed-content").slideToggle("normal");

			// Swap button title
			if ($(this).attr("title") == "Show") {
				$(this).attr("title", "Hide");
			} else {
				$(this).attr("title", "Show");
			}

			return false;
		});

		$(".collapsible > h2 > a[href='#'], .collapsible > .subtitle > a[href='#']").click(function () {
			$(this).parent().prev("a.button-collapse").click();
			return false;
		});


		// Hide all / show all links
		$("a.expand-all").live("click", function () {
			$(this).parent().siblings().find("a.button-collapse[title=Show]").click();
			return false;
		});

		$("a.collapse-all").live("click", function () {
			$(this).parent().siblings().find("a.button-collapse[title=Hide]").click();
			return false;
		});
	}




	// Initialize form filters
	function initFilters() {

		/*
		Filter select boxes should be within:
		<div class="filters" data-results="#uniqueid">

		Then the results HTML is located in <div id="uniqueid"> anywhere on the page.

		Any form change will hide and then show the results HTML. All processing is done on the server side.
		*/

		// Initialize structure and show results onload
		$("div.filters").each(function () {

			var $form = $(this);

			if ($form.siblings(".collapsed-content").length > 0) {

				// Use existing collapsible strcture if it exists
				$form.closest(".collapsible").addClass("filter-wrapper");
				$form.siblings(".collapsed-content").addClass("filter-contents");

			} else {

				// Create wrapper elements if not part of collapsible list (and don't already exist)
				if (!$form.parent().hasClass("filter-wrapper")) {
					$form
					.wrap('<div class="filter-wrapper"></div>')
					.after('<div class="filter-contents"></div>'); // Container for results content
				}
			}

			// Find and move form's results <div> within wrapper
			if ($form.data("results") && $($form.data("results")).length > 0) {
				$($form.data("results")).appendTo($form.next(".filter-contents:first"));
			}

			// Hide onload if within collapsed area
			if ($form.closest("filter-wrapper").hasClass("collapsed")) {
				$form.next(".filter-contents").hide();
			}
		})

		// Select box change action
		.find("select").change(function () {

			var $wrapper = $(this).closest(".filter-wrapper");
			var $contents = $wrapper.children(".filter-contents");

			$contents
				.stop(true)
				.slideUp("fast", function () {

					// Reset height if stopped in middle of animation
					$(this).css("height", "auto");

					// Server-side: replace contents with new results
					// ...
					// ...

					// Show new content
					if ($wrapper.hasClass("collapsed")) {
						// Click expand button
						$wrapper.find("a.button-collapse:first").click();
					} else {
						// Just show contents if not collapsed
						$contents.slideDown("normal");
					}
				});
		});
	}



	// Initialize tabs and link lists
	function initTabs() {

		/*
		Create tab anchor links to elements on page (no AJAX):
		<div class="tabs">
		<ul>
		<li><a href="#anchor1">Link 1</a></li>
		<li><a href="#anchor2">Link 2</a></li>
		</ul>
		</div>

		Add <li class="active"> to any tab that you want to be active on page load.
		The destination contents can be anywhere on the page, and will be dynamically hidden until that tab is clicked.

		Any form filters within the tab will auto-submit upon the tab content loading.
		If the links are to regular pages (not local anchors), they will work like regular pages
		*/

		$(".tabs")
		.wrap('<div class="tab-wrapper"></div>')  // Wrap to speed up DOM browsing
		.after('<div class="tab-contents"></div>')  // Group all destination contents here

		.each(function () {
			// Tabs are coded as lists, but must rewrite into layout tables 
			// for better spacing until all targeted browsers support display:table

			var $tabs = $(this);
			var $table = $('<table cellspacing="0"></table>');

			$("li", this).each(function () {
				var $tablecell = $("<td>" + $(this).html() + "</td>");

				$tablecell.attr("class", $(this).attr("class"));
				$tablecell.attr("id", $(this).attr("id"));
				$tablecell.attr("style", $(this).attr("style"));
				$table.append($tablecell);
			});

			// Set first tab to be active if none are
			if ($("td.active", $table).length == 0) {
				$("td:first", $table).addClass("active");
			}

			// Add row
			$table = $table.wrapInner('<tbody><tr></tr></tbody>');

			// Replace list with table
			$("ul", this).replaceWith($table);


			// Find and group tabs' destination contents within wrapper and hide
			$("a", this).each(function () {
				if (this.hash && $(this.hash).length > 0) {
					$(this.hash).hide().appendTo($tabs.siblings(".tab-contents:first"));
				}
			});
		})

		// Tab click action
		.find("a").click(function () {

			var link = this;
			var $link = $(this);

			// Can't click on current tab or tab without working link
			if ($link.closest("td").hasClass("active") || $link.attr("href") == "#") { return false; }

			// If regular link (not anchor), just follow link
			if (link.hash == "") { return true; }

			// Highlight new active tab
			$link.closest("td")
				.addClass("active")
				.siblings(".active")
				.removeClass("active");

			// Find previous anchor tab contents
			var $contentsgroup = $link.closest(".tab-wrapper").children(".tab-contents");
			var $contents = $contentsgroup.children();


			// Slide up the grouping, not individual content element
			$contentsgroup
				.stop(true) // Stop if already animating
				.slideUp("fast", function () {

					// Hide all old tab contents
					$contentsgroup.children().hide();

					// Reset height if stopped in middle of animation
					$(this).css("height", "auto");

					// Get anchor link
					var anchor = link.hash;

					// Double-check that the destination element actually exists
					if (!anchor || $(anchor).length == 0) { return false; }

					// Show new contents and group
					$(anchor).show();
					$(this).slideDown("normal");
				});

			return false;
		})


		// Show initial/active tab contents onload
		.end().find("td.active:first a").each(function () {

			// Get anchor link
			var anchor = this.hash;

			// Only continue of the destination element actually exists
			if (!anchor || $(anchor).length == 0) { return false; }

			// Show new contents and group
			$(anchor).show();
			$(this).show();
		});



		// Horziontal linked list
		// Only add wrappers if not within collapsible blocks (otherwise use those existing elements)
		// Must call initCollapsible() first to setup collapsible structure

		$("#contentwrapper .links")
		.each(function () {

			var $tabs = $(this);

			if ($tabs.siblings(".collapsed-content").length > 0) {

				// Use existing collapsible strcture if it exists
				$tabs.closest(".collapsible").addClass("tab-wrapper");
				$tabs.siblings(".collapsed-content").addClass("tab-contents");

			} else {

				// Otherwise, create wrappers just like with tabs
				$tabs
					.wrap('<div class="tab-wrapper"></div>')
					.after('<div class="tab-contents"></div>');
			}

			// Set first link to be active if none are
			if ($("a.highlight", this).length == 0) {
				$("a:first", this).addClass("highlight");
			}


			// Find and group links' destination contents within wrapper and hide
			$("a", this).each(function () {
				if (this.hash && $(this.hash).length > 0) {
					$(this.hash).hide().appendTo($tabs.siblings(".tab-contents:first"));
				}
			});

		})

		// Link click action
		.find("a").click(function () {

			var link = this;
			var $link = $(this);

			// Can't click on tab without working link
			if ($link.attr("href") == "#") { return false; }

			// Find previous anchor tab contents
			var $wrapper = $link.closest(".tab-wrapper");
			var $contentsgroup = $wrapper.children(".tab-contents");
			var $contents = $contentsgroup.children();

			// Can't click on current tab, except when the block is collapsed
			if ($link.hasClass("highlight")) {
				if ($wrapper.hasClass("collapsed")) {
					// Expand to show if collapsed
					$wrapper.find("a.button-collapse:first").click();
				}
				return false;
			}

			// Highlight new active tab
			$link
				.addClass("highlight")
				.siblings("a.highlight")
				.removeClass("highlight");


			// Slide up the grouping, not individual content element
			$contentsgroup
				.stop(true) // Stop if already animating
				.slideUp("fast", function () {

					// Hide all old tab contents
					$contents.hide();

					// Reset height if stopped in middle of animation
					$(this).css("height", "auto");

					// Get anchor link
					var anchor = link.hash;

					// Only continue if the destination element actually exists
					if (!anchor || $(anchor).length == 0) { return false; }

					// Show new contents and group
					$(anchor).show();

					if ($wrapper.hasClass("collapsed")) {
						// Click expand button if collapsed block
						$wrapper.find("a.button-collapse:first").click();
					} else {
						// Just show contents if not collapsed
						$contentsgroup.slideDown("normal")
					}
				});

			return false;
		})


		// Show initial/active tab contents onload
		.end().find("a.highlight").each(function () {

			var $wrapper = $(this).closest(".tab-wrapper");
			var $contentsgroup = $wrapper.children(".tab-contents");

			// Get anchor link
			var anchor = this.hash;

			// Only continue of the destination element actually exists
			if (!anchor || $(anchor).length == 0) { return false; }

			// Show new contents and group
			$(anchor).show();

			// Show contents only if not collapsed onload
			if (!$wrapper.hasClass("collapsed")) {
				$contentsgroup.show();
			}
		});
	}




	// Article toolbar
	function initArticleTools() {
		if ($("div.article-tools").length == 0) { return; }

		// Set widths of flyouts
		$("li.tool-size > ul").css("min-width",
			$("li.tool-size").width() - parseInt($("li.tool-size > ul").css("padding-left")) - parseInt($("li.tool-size > ul").css("padding-right")));

		$("li.tool-share > ul").css("min=width",
			$("li.tool-share").width() - parseInt($("li.tool-share > ul").css("padding-left")) - parseInt($("li.tool-share > ul").css("padding-right")));


		// Expand flyouts upon focus (for keyboard and tap support)
		$(".article-tools > ul > li.flyout").bind("focusout", function () {
			if ($(this).hasClass("expand")) {
				$(this).removeClass("expand");
			}
			return false;
		})
		.children("a").click(function () {
			if ($(this).siblings("ul").is(":hidden")) {
				$(this).parent().addClass("expand");
			}
			return false;
		});




		// Determine text size cookie
		var textsize = readCookie("ebi-textsize");

		switch (textsize) {
			case "2":
				$(".tool-text-medium").addClass("active");
				$("body").addClass("text-medium");
				break;

			case "3":
				$(".tool-text-large").addClass("active");
				$("body").addClass("text-large");
				break;

			case "1":
			default:
				$(".tool-text-small").addClass("active");
				$("body").addClass("text-small");
				break;
		}


		// Set text size
		$(".tool-size li > a").click(function () {

			// Check that size isn't already active
			if ($(this).hasClass("active")) { return false; }

			// Remove old classes
			$(".tool-size a.active").removeClass("active");
			$("body").removeClass("text-small text-medium text-large");

			// Set cookie and body classes
			if ($(this).hasClass("tool-text-small")) {
				createCookie("ebi-textsize", "1", 1095);
				$("body").addClass("text-small");

			} else if ($(this).hasClass("tool-text-medium")) {
				createCookie("ebi-textsize", "2", 1095);
				$("body").addClass("text-medium");

			} else if ($(this).hasClass("tool-text-large")) {
				createCookie("ebi-textsize", "3", 1095);
				$("body").addClass("text-large");
			}

			$(this).addClass("active");

			return false;
		});

	}



	// Initialize calendar (requires jQuery UI datepicker)
	function initCalendar() {
		if ($.datepicker) {

			$("a.datepicker")
				.before('<input type="text" name="date" style="display:none" size="10" maxlength="10" />')
				.click(function () { $(this).prev("input").datepicker("show"); return false; });

			$("a.datepicker").prev("input")
				.datepicker({
					changeMonth: true,
					changeYear: true,
					showOtherMonths: true,
					selectOtherMonths: true,
					maxDate: "+0",
					dayNamesMin: ['S', 'M', 'T', 'W', 'T', 'F', 'S'],
					onSelect: function (dateText, inst) {
						// Redirect to location in link with chosen date in querystring
						var d = new Date(dateText);
						var fmt2 = $.datepicker.formatDate("M-dd-yy", d);
						location.href = this.nextSibling.href + "?issue=" + fmt2;
					}
				});
		}
	}



	// Initialize search results
	function initSearchResults() {
		if ($("body.search").length == 0) { return; }


		// Check All results column
		if ($("td.search-check, th.search-check").length > 0) {

			// Toggle all boxes of table when header is checked
			$("th.search-check input:checkbox").click(function () {
				if ($(this).is(":checked")) {
					$(this).closest("table").find("td.search-check input:checkbox").attr("checked", "checked");
				} else {
					$(this).closest("table").find("td.search-check input:checkbox").removeAttr("checked");
				}
				updateCheckboxCounts();
			});

			$("td.search-check input:checkbox").click(function () {
				if ($(this).is(":checked")) {

					// Check header if *all* boxes checked
					var allchecked = true;
					$(this).closest("table").find("td.search-check input:checkbox").each(function () {
						allchecked &= $(this).is(":checked");
					});

					if (allchecked) {
						$(this).closest("table").find("th.search-check input:checkbox").attr("checked", "checked");
					}

				} else {
					// Uncheck header if any boxes uncheck
					$(this).closest("table").find("th.search-check input:checkbox").removeAttr("checked");
				}
				updateCheckboxCounts();
			});
		}


		// More/fewer options toggle
		$("a.more-options").click(function () {

			// Toggle options
			$("div.more-options").slideToggle("fast");

			// Swap text
			if ($(this).text().indexOf("More") > 0) {
				$(this).html($(this).html().replace("+ More", "– Fewer"));
			} else {
				$(this).html($(this).html().replace("– Fewer", "+ More"));
			}

			return false;
		});

		// Hide other options onload
		$("div.more-options").not(".expanded").hide();


		// Date range selection (requires jQuery UI datepicker)
		if ($.datepicker) {

			$.datepicker.setDefaults({
				changeMonth: true,
				changeYear: true,
				showOtherMonths: true,
				selectOtherMonths: true,
				maxDate: "+0",
				dayNamesMin: ['S', 'M', 'T', 'W', 'T', 'F', 'S']
			});

			$("select.date-selection").change(function () {
				var $cell = $(this).closest("td");
				var value = $(this).val();

				// Show date fields based on range selection
				switch (value) {
					case 'on':
						$(".date-fields", $cell).removeClass("invisible");
						$(".date-range", $cell).addClass("invisible");

						$("input.date-start", $cell).datepicker("destroy").datepicker();
						break;

					case 'since':
						$(".date-fields", $cell).removeClass("invisible");
						$(".date-range", $cell).addClass("invisible");

						$("input.date-start", $cell).datepicker("destroy").datepicker({ maxDate: "-1" });
						break;

					case 'before':
						$(".date-fields", $cell).removeClass("invisible");
						$(".date-range", $cell).addClass("invisible");

						$("input.date-start", $cell).datepicker("destroy").datepicker({ maxDate: "+1" });
						break;

					case 'between':
						$(".date-fields", $cell).removeClass("invisible");
						$(".date-range", $cell).removeClass("invisible");

						var dates = $("input.date-start, input.date-end", $cell).datepicker("destroy").datepicker({
							onSelect: function (selectedDate) {
								var option = $(this).hasClass("date-start") ? "minDate" : "maxDate",
										instance = $(this).data("datepicker"),
										date = $.datepicker.parseDate(
													instance.settings.dateFormat || $.datepicker._defaults.dateFormat,
													selectedDate,
													instance.settings
												);
								dates.not(this).datepicker("option", option, date);
							}
						});
						break;

					default:
						$(".date-fields", $cell).addClass("invisible");
				}

			}).change();
		}
	}

	function updateCheckboxCounts() {
		var size = 0;
		var selected = "";
		var i = 0;
		$("td.search-check input").each(function () {
			if ($(this).is(":checked")) {
				size++;
				if (selected.length > 0) {
					selected += ",";
				}
				selected += i;
			}
			i++;
		});
		$("span.check-count").html(size);
		$("#selected-rows-input").val(selected);
	}




	// IE6 PNG fix
	function iepngfix() {

		// IE 5.5 and 6.0 PNG filter support (derived from youngpup.net)
		$("img[src$=png]").each(function () {
			var src = this.src;
			var div = document.createElement("div");

			// Set replacement div properties
			div.id = this.id;
			div.className = this.className;
			div.title = this.title || this.alt;
			div.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizing='scale')";
			div.style.width = this.width + "px";
			div.style.height = this.height + "px";

			// Replace image with transparent div
			this.replaceNode(div);
		});
	}

	function checkShippingBillingMatches() {
		var discrepancyCount = 0;
		$(".address-shipping").each(function () {
			var shippingBox = $(this).find("input:text, select");
			var fieldClass = $(this).attr('class').split(/\s+/)[1];
			var billingParent = $(".address-billing." + fieldClass);
			var billingBox = billingParent.find("input:text, select");
			if (shippingBox.val() != billingBox.val()) {
				discrepancyCount++;
			}
		});
		$("#chkMatchShippingAndBilling").attr('checked', discrepancyCount == 0);
	}

	/* -------- Helper functions -------- */

	// Cookie utilities
	function createCookie(name, value, days) {
		if (days) {
			var date = new Date();
			date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
			var expires = "; expires=" + date.toGMTString();
		} else {
			var expires = "";
		}
		document.cookie = name + "=" + value + expires + "; path=/";
	}

	function readCookie(name) {
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for (var i = 0; i < ca.length; i++) {
			var c = ca[i];
			while (c.charAt(0) == ' ') c = c.substring(1, c.length);
			if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
		}
		return null;
	}
});

// Publication cart metrics tracking
var uPrice = 0;
var uQuantity = 1;
var uProduct = '';
function setCartMetricsVars(price, quantity, name) {
	uPrice = price;
	uQuantity = quantity;
	uProduct = name;
}

function trackCartAdd() {
	var parameters = 'rta=1&sProduct=' + uProduct + '&jQuantity=' + uQuantity + '&fPrice=' + uPrice;	
	ntptEventTag(parameters);
}

function trackCartAdd(price, quantity, name) {
    var parameters = 'rta=1&sProduct=' + name + '&jQuantity=' + quantity + '&fPrice=' + price;
    ntptEventTag(parameters);
}