function equalHeight(group) {
	tallest = 0;
	group.each(function() {
		thisHeight = $(this).height();
		if(thisHeight > tallest) {
			tallest = thisHeight;
		}
	});
	if(minHeightCheck() == true) {
		group.css("min-height",tallest + "px");
	}
	else {
		//browser does not support min-height so we must use height instead	
		group.css("height",tallest + "px");
	}
}

//We need to see if the browser supports min-height css property
function minHeightCheck() {
	var id = "minheightsupport" + (new Date).getTime();
	$("<div></div>").attr("id",id).css({ height : "1px", minHeight : "2px", overflow : "hidden", border : "none", padding : "0", margin : "0" }).appendTo("body");
	var iscorrectheight = document.getElementById(id).offsetHeight==2;
	$("#"+id).remove();
	return iscorrectheight;
}

$(document).ready(function() {
    //Magazine titles list
    if ($(".magazine_titles").length > 0) { //Check if magazine titles are displayed on this page
        $(".magazine_titles ul").hide(); //Hide sub items
        //Add plus icon and when it is clicked show the sub items and minus icon
        $(".magazine_titles > li").addClass("plus").click(function() {
            $(this).toggleClass("minus").find("ul").slideToggle("fast", function() {
                equalHeight($(".equal-height")); //adjust height of content area												 
            });
        });

        // expand the default panel
        var categoryid = $.query.get('categoryid');
        if (categoryid != "") {
            var pnl = document.getElementById("Category_" + categoryid);
            if (pnl != null) {
                $(pnl).toggleClass("minus").find("ul").slideToggle("fast", function() {
                    equalHeight($(".equal-height")); //adjust height of content area												 
                });
            }
        }
    }

    if ($("#media_kit_builder").length > 0) { //Check if media kit builder is displayed on this page
        $("#media_kit_builder .magazine").hide();
        $("#media_kit_builder .category th").addClass("plus").click(function() {
            $(this).toggleClass("minus").closest("tbody").find(".magazine").toggle(); //.css("display","table-row")
            equalHeight($(".equal-height")); //adjust height of content area
        });
    }

    //Equalise column heights
    $("#aside").addClass("equal-height");
    $("#title_sub_nav").addClass("equal-height");
    $("#content").addClass("equal-height");
    equalHeight($(".equal-height"));


    //Fly out nav
    $(".popout_sub_nav").css("display", "block");
    $("#title_sub_nav ul").height($("#title_sub_nav").height() - 29); //Set height of nav
    $("#category_sub_nav ul").height($("#title_sub_nav").height() - 60); //Set height of nav
    $(".popout_sub_nav ul").jScrollPane({ dragMaxHeight: 23, scrollbarWidth: 2 }); //Add scroll bar
    $(".popout_sub_nav").hide(); //Hide by default

    $("#search_title").hover(function(e) {
        e.stopPropagation();
    });

    //Show nav on hover
    $("#search_title").hover(
	    function() {
	        $(".popout_sub_nav").hide();
	        $("#title_sub_nav").show();
	    },
	    function() {
	        $("#title_sub_nav").hide();
	    }
	);

    $("#search_category").hover(
	    function() {
	        $(".popout_sub_nav").hide();
	        $("#category_sub_nav").show();
	    },
	    function() {
	        $("#category_sub_nav").hide();
	    }
	);

    $("#search_website").hover(
	    function() {
	        $(".popout_sub_nav").hide();
	        $("#website_sub_nav").show();
	    },
	    function() {
	        $("#website_sub_nav").hide();
	    }
	);


    /*
    //hide nav when clicking elsewhere on the page
	
	$("#search_title").click(function(e) {
    e.stopPropagation();
    });
	
	$("#search_category").click(function(e) {
    e.stopPropagation();
    });
	
	$("#search_website").click(function(e) {
    e.stopPropagation();
    });
	
	$(document).click(function(){  
    $("#title_sub_nav").hide();
    $("#category_sub_nav").hide();
    $("#website_sub_nav").hide();
    });
    */

    //Keyword search
	/*
    $("#search_keyword").height(30).click(function() {
        $(this).height(60);
    });
	*/

    $("#search_keyword input").focus(function() {
        if ($(this).attr("value") == "enter keyword") {
            $(this).val("");
        }
    });
});

var infoTypes = new Array("contacts", "rates", "specs", "profile", "digital", "deadlines");
var mediaKitBuilder = new Array();

function addCategory(categoryID)
{
	var exist = false;

	for(i = 0; i < mediaKitBuilder.length; i++)
	{
		exist = (mediaKitBuilder[i][0] == categoryID) ? true : exist;
	}
	
	if(!exist)
	{
		mediaKitBuilder.push(new Array(new String(categoryID)));
	}
}

function addMagazine(categoryID, magazineID)
{
	var found = false;

	for(i = 0; i < mediaKitBuilder.length && !found; i++)
	{
		if(mediaKitBuilder[i][0] == categoryID)
		{
			found = true;
								
			mediaKitBuilder[i].push(new Array(new String(magazineID)));
		}
	}
}

function check_all(obj, type)
{
	var i;
	
	if(type == '' || type == 'all')
	{
		// check all the cb's
		
		for(var i = 0; i < infoTypes.length; i++)
		{
			var cb = document.getElementById("cb_" + infoTypes[i]);

			if(cb != null)
			{
				cb.checked = obj.checked;
			}
		}
		
		for(var i = 0; i < mediaKitBuilder.length; i++)
		{	
			var cb = document.getElementById("cb_" + mediaKitBuilder[i][0]);

			if(cb != null)
			{
				cb.checked = obj.checked;
				
				check_category(cb, mediaKitBuilder[i][0], type)
			}
		}
	} 
	else 
	{
		// check all the cb's
		for(var i = 0; i < mediaKitBuilder.length; i++)
		{	
			var cb = document.getElementById("cb_" + mediaKitBuilder[i][0] + "_" + type);

			if(cb != null)
			{
				cb.checked = obj.checked;
				
				check_category(cb, mediaKitBuilder[i][0], type)
			}
		}

	}

}

function check_category(obj, categoryID, type)
{
	var found = false;

	if(type == '' || type == 'all')
	{
		// check all the cb's for this category
		for(var i = 0; i < infoTypes.length; i++)
		{
			var cb = document.getElementById(obj.id + "_" + infoTypes[i]);
			if(cb != null)
			{
				cb.checked = obj.checked;
			}
		}
		
		// check all the cb's for each mag in this category
		for(var i = 0; i < mediaKitBuilder.length && !found; i++)
		{
			if(mediaKitBuilder[i][0] == categoryID)
			{
				found = true;
								
				for(var x = 1; x < mediaKitBuilder[i].length; x++)
				{
					var mag_cb = document.getElementById("cb_" + categoryID + "_" + mediaKitBuilder[i][x]);
					
					if(mag_cb != null)
					{
						mag_cb.checked = obj.checked;
						
						check_mag(mag_cb);
					}
				}
			}
		}
	}
	else
	{
		// check all the cb's for each mag in this category
		var cb = document.getElementById(obj.id + "_" + type);
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
		
		// check all the cb's for each mag in this category
		for(var i = 0; i < mediaKitBuilder.length && !found; i++)
		{
			if(mediaKitBuilder[i][0] == categoryID)
			{
				found = true;
								
				for(var x = 1; x < mediaKitBuilder[i].length; x++)
				{
					var mag_cb = document.getElementById("cb_" + categoryID + "_" + mediaKitBuilder[i][x] + "_" + type);
					
					if(mag_cb != null)
					{
						mag_cb.checked = obj.checked;
					}
				}
			}
		}
	}
	
	if(!obj.checked)
	{
		check(obj, categoryID, null, type);
	}
}

function check_mag(obj)
{
	// check all the cb's for this magazine
	for(i = 0; i < infoTypes.length; i++)
	{
		var cb = document.getElementById(obj.id + "_" + infoTypes[i]);
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
	}
}

function check(obj, categoryID, magazineID, type)
{
	if(!obj.checked)
	{
		// uncheck the group cb's
		var cb = document.getElementById("cb_all");
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
		
		cb = document.getElementById("cb_" + type);
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
		
		// uncheck the category
		cb = document.getElementById("cb_" + categoryID);
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
		
		cb = document.getElementById("cb_" + categoryID + "_" + type);
		if(cb != null)
		{
			cb.checked = obj.checked;
		}
		
		if(magazineID != undefined && magazineID != null)
		{
			// uncheck the magazine
			cb = document.getElementById("cb_" + categoryID + "_" + magazineID);
			if(cb != null)
			{
				cb.checked = obj.checked;
			}
		}
		else
		{
			var found = false;
			for(var i = 0; i < mediaKitBuilder.length && !found; i++)
			{
				if(mediaKitBuilder[i][0] == categoryID)
				{
					found = true;
									
					for(var x = 1; x < mediaKitBuilder[i].length; x++)
					{
						var mag_cb = document.getElementById("cb_" + categoryID + "_" + mediaKitBuilder[i][x]);
						
						if(mag_cb != null)
						{
							mag_cb.checked = obj.checked;
						}
					}
				}
			}		
		}
	}
}

function viewMediaKitPdf(e)
{
    window.open("media-kit-pdf.axd?targetUrl=Content.aspx%3fid=2860%26" + escape(getMediaKitUrl()), "pdf", "");
	
	return false;
}

function viewMediaKitHtml(e)
{
    // centre the popup
    openCenteredPopup("media-kit-display.htm?" + getMediaKitUrl(), "mediaKit");
	
	return false;
}

function getMediaKitUrl()
{
    var categoryID, contentID;
    var infoType, url;
    var cb;
    var qsKeys, magazineIDs;
    var i, c, x, y;
    var binaryID;
    var exists;

    qsKeys = new Array();
    magazineIDs = new Array();
    
    // build array for the qs
    qsKeys["magazines"] = new BigInt("0");
    
    for (i = 0; i < infoTypes.length; i++)
    {
        qsKeys[infoTypes[i]] = new BigInt("0");
    }
    
    for (i = 0; i < mediaKitBuilder.length; i++)
    {
        categoryID = mediaKitBuilder[i][0];
        
        for (c = 1; c < mediaKitBuilder[i].length; c++)
        {
            contentID = mediaKitBuilder[i][c];
        
            for (x = 0; x < infoTypes.length; x++)
            {
                infoType = infoTypes[x];
            
                cb = document.getElementById("cb_" + categoryID + "_" + contentID + "_" + infoType);
                
                if (typeof(cb) != 'undefined' && cb.checked)
                {
                    binaryID = new BigInt(cb.value);
                    
                    exists = false;
                
                    for (y = 0; y < magazineIDs.length; y++)
                    {
                        if (magazineIDs[y] == contentID)
                        {
                            exists = true;
                            break;
                        }
                    }
                    
                    if (!exists)
                    {
                        qsKeys["magazines"] = bigint_plus(qsKeys["magazines"], binaryID);
                        
                        magazineIDs.push(contentID);
                    }
                    qsKeys[infoType] = bigint_plus(qsKeys[infoType], binaryID);
                }
            }
        }
    }
    
    // build the url
    url = "magazines=" + qsKeys["magazines"];
    
    for (i = 0; i < infoTypes.length; i++)
    {
        url = url + "&" + infoTypes[i] + "=" + qsKeys[infoTypes[i]];
    }
    
    return url;

}

function viewMagazineMediaKit(link)
{
    openCenteredPopup(link.href, "magazineMediaKit");

    return false;
}

function openCenteredPopup(url, windowName)
{
    var left = 0;
    var top = 0;
    var width = 750;
    var height = 500;
    
    if (document.all || document.layers)
    {
        left    = (screen.availWidth - width) / 2;
        top     = (screen.availHeight - height) / 2;
    }
    else
    {
        left    = (screen.width - width) / 2;
        top     = (screen.height - height) / 2;
    }

    window.open(url, windowName, "height=" + height + ",width=" + width + ",toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizeable=yes,left=" + left + ",top=" + top);
}