$(document).ready(function(){    
    //Modify the standard .NET client validation so we can have a bit more control over presentation
    ModifyASPNETValidation();
    
    //Handle all links with rel = external
    $('a[rel="external"]').ExternalLinks();
    
    //Force all links with rel 'top' to open in the top window
    $('a[rel="top"]').TopLinks();
    
    //Adds overlay behaviour to the 2 social links in the main nav
    InitOverlays();
    
    //Fix ie6 issues
    FixIE6();    
});

function InitOverlays()
{
    $('div#nav li.social li.shareWithFriend a').click(function(){
        var overlayUrl = GetOverlayUrl($(this).attr('href'));
        var hash = window.location.hash;
        if (hash.length > 0)
        {
            overlayUrl += '&h='+hash.replace('#', '');
        }        
        $.colorbox({width:'600px', height:'500px', iframe:true, href:overlayUrl});
        return false;
    });
    
    var emailUpdatesLink = $('div#nav li.social li.emailUpdates a');
    if (emailUpdatesLink.length > 0)
    {
        var overlayUrl = GetOverlayUrl(emailUpdatesLink.attr('href'));
        emailUpdatesLink.colorbox({width:'600px', height:'400px', iframe:true, href:overlayUrl});
    }
}

function GetOverlayUrl(baseUrl)
{
    var path = jQuery.url.setUrl(baseUrl).attr('path');
    var overlayPath = path+'-overlay';
    return baseUrl.replace(path, overlayPath);
}

function trackGAPageview(pageName)
{
    if (typeof(_gaq) != 'undefined')
    {
        _gaq.push(['_trackPageview', pageName]);
    }
}

function trackGAEvent(category, action, label, value)
{
    if (typeof(_gaq) != 'undefined')
    {
        _gaq.push(['_trackEvent', category, action, label, value]);
    }
}

function FixIE6()
{
    if ($('body').hasClass('IE6'))
    {
        //Add a hover class to the top level menu items so we can tell when we need to drop down the sub navs
        $('div#nav li.level1').hover(function(){
            var item = $(this);
            item.addClass('hover');
            if (item.hasClass('last'))
            {
                item.addClass('lastHover');
            }
        },
        function(){
            var item = $(this);
            item.removeClass('hover');
            if (item.hasClass('last'))
            {
                item.removeClass('lastHover');
            }
        });
    }
}

//Re-assigns a couple of the ASP.NET validation JS functions to provide a more flexible approach
function ModifyASPNETValidation()
{
    //Hi-jack the ASP.NET error display only if required
    if (typeof(Page_ClientValidate) != "undefined")
    {
        ValidatorUpdateDisplay = NicerValidatorUpdateDisplay;
        AspPage_ClientValidate = Page_ClientValidate;
        Page_ClientValidate = NicerPage_ClientValidate;
    }
    
    //Add validation statuses to any validation controls that may be visible (i.e. visible when the page loads)
    $('span.validation:visible,span.EditingFormErrorLabel:visible').each(function(){
        AddValidationStatus($(this));
    });
}

function AddValidationStatus(obj)
{
    if (obj.hasClass('validation') || obj.hasClass('EditingFormErrorLabel'))
    {
        //We'll look for a validation container to set the status on
        var vc = obj.parents('div.validationContainer');
        if (vc.length == 0)
        {
            //Fall back to div.formInput
            vc = obj.parents('div.formInput');
        }
        vc.addClass('invalidInput');
    }
}

function RemoveValidationStatus(obj)
{
    if (obj.hasClass('validation') || obj.hasClass('EditingFormErrorLabel'))
    {
        //We'll look for the validation container to remove the status
        var vc = obj.parents('div.validationContainer');
        if (vc.length == 0)
        {
            //Fall back to div.formInput
            vc = obj.parents('div.formInput');
        }
        vc.removeClass('invalidInput');
    }
}

//Extends the classic ASP.NET validation
function NicerValidatorUpdateDisplay(val)
{
    var $val = $(val);
    if (val.isvalid)
    {
        //Hide the validation control
        $val.hide();        
        
        //Remove the validation status if there are no more validaiton controls visible
        if ($val.parent().find('span.validation:visible,span.EditingFormErrorLabel:visible').length == 0)
        {            
            RemoveValidationStatus($val);
        }
    }
    else
    {
        //Show the validation control
        $val.show();
        
        //Add the validation status
        AddValidationStatus($val);
    }
}

//Extends classic ASP.NET validation to include parent element styling
function NicerPage_ClientValidate(validationGroup)
{
    var valid = AspPage_ClientValidate(validationGroup);
    if (!valid)
    {
        //$(this).parent().addClass('invalidInput');
    }
    else
    {
        //$(this).parent().removeClass('invalidInput');
    }
    return valid;
}

//ExternalLinks - tracking based on http://www.iqcontent.com/blog/2007/02/tracking-documents-and-external-links-in-google-analytics/
(function($) {
    $.fn.extend({
        ExternalLinks : function() {            
            return this.each(function() {                  
                if (this.tagName != 'A') {
                    return false;
                }
                
                var link = String(this);
                var linkHost = this.hostname;
                var siteHost = location.host;
                
	            if (link.match(/^mailto:/i)) 
	            {
                    $(this).click(function() {  
		                return HandleMailToLink(this);
                    });
	            }
	            else if (linkHost == siteHost) 
	            {
	                var parts = link.split('?');
	                var path = parts[0];
		            if(path.match(/\.(doc|pdf|xls|ppt|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3|ashx)$/)) 
		            {
                        ModifyTitleAttribute(this);  
                        $(this).click(function() {  
		                    return HandleDocumentLink(this);
                        });
		            }
		            else
		            {
                        $(this).click(function() {  
	                        return HandleInternalLink(this);
                        });
		            }
	            }
	            else 
	            {
                    ModifyTitleAttribute(this); 
                    $(this).click(function() {  
		                return HandleExternalLink(this);
                    });
		        }
            });
        
            function HandleMailToLink(anchor)
            {
                var email = anchor.href.substring(7);
                TrackLink('email', email);
                
                return true;
            }
            
            function HandleDocumentLink(anchor)
            {
                var doc = CleanURL(anchor.pathname, false);
                TrackLink('documents', doc);              
                
                window.open(anchor.href);		            
                return false;
            }
            
            function HandleInternalLink(anchor)
            {             
                window.open(anchor.href);		            
                return false;
            }
            
            function HandleExternalLink(anchor)
            {
                var link = CleanURL(anchor.hostname+'/'+anchor.pathname, true);
                TrackLink('external', link);
                
                window.open(anchor.href);		            
                return false;
            }
            
            function TrackLink(type, virtualPath)
            {
	            var linkStr = CleanURL('/'+type+'/'+virtualPath, true);
			trackGAPageview(linkStr);
	            
            }
            
            function CleanURL(url, end)
            {
	            var url = url.toString();
	            var urlLen = url.length;
            	
	            if (end)
	            {
		            if (url.charAt((urlLen-1))=='/') {
			            url = url.substring(0,(urlLen-1));
			        }
	            }
	            else
	            {
		            if (url.charAt(0)=='/') {
			            url = url.substring(1,urlLen);
			        }
	            }
	            return url;
            }
            
            function ModifyTitleAttribute(anchor)
            {
                var jAnchor = $(anchor);
                var title = $(anchor).attr('title');
                if (title.length > 0)
                {
                    title += ' [opens in a new window]';
                }
                else
                {
                    title += 'Opens in a new window';
                }
                jAnchor.attr('title', title);
            }
        }
    });
})(jQuery);

//TopLinks forces a link to open in the top window
(function($) {
    $.fn.extend({
        TopLinks : function() {            
            return this.each(function() {                  
                if (this.tagName != 'A') {
                    return false;
                }
                
                $(this).click(function(){
                    top.location = this.href;
                    return false;
                });
            });
        }
    });
})(jQuery);

// JQuery URL Parser
// Written by Mark Perkins, mark@allmarkedup.com
// License: http://unlicense.org/ (i.e. do what you want with it!)
jQuery.url = function()
{
	var segments = {};	
	var parsed = {};
	
	/**
    * Options object. Only the URI and strictMode values can be changed via the setters below.
    */
  	var options = {	
		url : window.location, // default URI is the page in which the script is running		
		strictMode: false, // 'loose' parsing by default	
		key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"], // keys available to query 
		q: {
			name: "queryKey",
			parser: /(?:^|&)([^&=]*)=?([^&]*)/g
		},		
		parser: {
			strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,  //less intuitive, more accurate to the specs
			loose:  /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/ // more intuitive, fails on relative paths and deviates from specs
		}		
	};
	
    /**
     * Deals with the parsing of the URI according to the regex above.
 	 * Written by Steven Levithan - see credits at top.
     */		
	var parseUri = function()
	{
		str = decodeURI( options.url );
		
		var m = options.parser[ options.strictMode ? "strict" : "loose" ].exec( str );
		var uri = {};
		var i = 14;

		while ( i-- ) {
			uri[ options.key[i] ] = m[i] || "";
		}

		uri[ options.q.name ] = {};
		uri[ options.key[12] ].replace( options.q.parser, function ( $0, $1, $2 ) {
			if ($1) {
				uri[options.q.name][$1] = $2;
			}
		});

		return uri;
	};

    /**
     * Returns the value of the passed in key from the parsed URI.
  	 * 
	 * @param string key The key whose value is required
     */		
	var key = function( key )
	{
		if ( jQuery.isEmptyObject(parsed) )
		{
			setUp(); // if the URI has not been parsed yet then do this first...	
		} 
		if ( key == "base" )
		{
			if ( parsed.port !== null && parsed.port !== "" )
			{
				return parsed.protocol+"://"+parsed.host+":"+parsed.port+"/";	
			}
			else
			{
				return parsed.protocol+"://"+parsed.host+"/";
			}
		}	
		return ( parsed[key] === "" ) ? null : parsed[key];
	};
	
	/**
     * Returns the value of the required query string parameter.
  	 * 
	 * @param string item The parameter whose value is required
     */		
	var param = function( item )
	{
		if ( jQuery.isEmptyObject(parsed) )
		{
			setUp(); // if the URI has not been parsed yet then do this first...	
		}
		return ( parsed.queryKey[item] === null ) ? null : parsed.queryKey[item];
	};

    /**
     * 'Constructor' (not really!) function.
     *  Called whenever the URI changes to kick off re-parsing of the URI and splitting it up into segments. 
     */	
	var setUp = function()
	{
		parsed = parseUri();		
		getSegments();	
	};
	
    /**
     * Splits up the body of the URI into segments (i.e. sections delimited by '/')
     */
	var getSegments = function()
	{
		var p = parsed.path;
		segments = []; // clear out segments array
		segments = parsed.path.length == 1 ? {} : ( p.charAt( p.length - 1 ) == "/" ? p.substring( 1, p.length - 1 ) : path = p.substring( 1 ) ).split("/");
	};
	
	return {		
	    /**
	     * Sets the parsing mode - either strict or loose. Set to loose by default.
	     *
	     * @param string mode The mode to set the parser to. Anything apart from a value of 'strict' will set it to loose!
	     */
		setMode : function( mode )
		{
			options.strictMode = mode == "strict" ? true : false;
			return this;
		},		
		/**
	     * Sets URI to parse if you don't want to to parse the current page's URI.
		 * Calling the function with no value for newUri resets it to the current page's URI.
	     *
	     * @param string newUri The URI to parse.
	     */		
		setUrl : function( newUri )
		{
			options.url = newUri === undefined ? window.location : newUri;
			setUp();
			return this;
		},		
		/**
	     * Returns the value of the specified URI segment. Segments are numbered from 1 to the number of segments.
		 * For example the URI http://test.com/about/company/ segment(1) would return 'about'.
		 *
		 * If no integer is passed into the function it returns the number of segments in the URI.
	     *
	     * @param int pos The position of the segment to return. Can be empty.
	     */	
		segment : function( pos )
		{
			if ( jQuery.isEmptyObject(parsed) )
			{
				setUp(); // if the URI has not been parsed yet then do this first...	
			} 
			if ( pos === undefined )
			{
				return segments.length;
			}
			return ( segments[pos] === "" || segments[pos] === undefined ) ? null : segments[pos];
		},		
		attr : key, // provides public access to private 'key' function - see above		
		param : param // provides public access to private 'param' function - see above		
	};	
}();

/**
* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
* 
* @param  f  onMouseOver function || An object with configuration options
* @param  g  onMouseOut function  || Nothing (use configuration options object)
* @author    Brian Cherne <brian@cherne.net>
*/
(function($){$.fn.hoverIntent=function(f,g){var cfg={sensitivity:7,interval:100,timeout:0};cfg=$.extend(cfg,g?{over:f,out:g}:f);var cX,cY,pX,pY;var track=function(ev){cX=ev.pageX;cY=ev.pageY;};var compare=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);if((Math.abs(pX-cX)+Math.abs(pY-cY))<cfg.sensitivity){$(ob).unbind("mousemove",track);ob.hoverIntent_s=1;return cfg.over.apply(ob,[ev]);}else{pX=cX;pY=cY;ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}};var delay=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);ob.hoverIntent_s=0;return cfg.out.apply(ob,[ev]);};var handleHover=function(e){var p=(e.type=="mouseover"?e.fromElement:e.toElement)||e.relatedTarget;while(p&&p!=this){try{p=p.parentNode;}catch(e){p=this;}}if(p==this){return false;}var ev=jQuery.extend({},e);var ob=this;if(ob.hoverIntent_t){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);}if(e.type=="mouseover"){pX=ev.pageX;pY=ev.pageY;$(ob).bind("mousemove",track);if(ob.hoverIntent_s!=1){ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}}else{$(ob).unbind("mousemove",track);if(ob.hoverIntent_s==1){ob.hoverIntent_t=setTimeout(function(){delay(ev,ob);},cfg.timeout);}}};return this.mouseover(handleHover).mouseout(handleHover);};})(jQuery);