// Strip leading and trailing white-space
String.prototype.trim = function() { return this.replace(/^\s*|\s*$/g, ''); }

// Check if string is empty
String.prototype.empty = function() {
    if (this.length == 0)
        return true;
    else if (this.length > 0)
        return /^\s*$/.test(this);
}

// Breaks cookie into an object of keypair cookie values
function crumbleCookie(c)
{
    var cookie_array = document.cookie.split(';');
    var keyvaluepair = {};
    for (var cookie = 0; cookie < cookie_array.length; cookie++)
    {
        var key = cookie_array[cookie].substring(0, cookie_array[cookie].indexOf('=')).trim();
        var value = cookie_array[cookie].substring(cookie_array[cookie].indexOf('=')+1, cookie_array[cookie].length).trim();
        keyvaluepair[key] = value;
    }

    if (c)
        return keyvaluepair[c] ? keyvaluepair[c] : null;

    return keyvaluepair;
}

/**
 *  For GA cookie explanation, see http://services.google.com/analytics/breeze/en/ga_cookies/index.html.
 *
 *  @return             -   <void>
 *
 *  @pre-condition      -   pageTracker initialised properly
 *  @post-condition     -   provides 'get' methods to access specific values in the Google Analytics cookies
 */
function gaCookies()
{
    // Cookie syntax: domain-hash.unique-id.ftime.ltime.stime.session-counter
    var utma = function() {
        var utma_array;

        if (crumbleCookie('__utma'))
            utma_array =  crumbleCookie('__utma').split('.');
        else
            return null;

        var domainhash = utma_array[0];
        var uniqueid = utma_array[1];
        var ftime = utma_array[2];
        var ltime = utma_array[3];
        var stime = utma_array[4];
        var sessions = utma_array[5];

        return {
            'cookie': utma_array,
            'domainhash': domainhash,
            'uniqueid': uniqueid,
            'ftime': ftime,
            'ltime': ltime,
            'stime': stime,
            'sessions': sessions
        };
    };

    // Cookie syntax: domain-hash.gif-requests.10.stime
    var utmb = function() {
        var utmb_array;

        if (crumbleCookie('__utmb'))
            utmb_array = crumbleCookie('__utmb').split('.');
        else
            return null;
        var gifrequest = utmb_array[1];

        return {
            'cookie': utmb_array,
            'gifrequest': gifrequest
        };
    };

    // Cookie syntax: domain-hash.value
    var utmv = function() {
        var utmv_array;

        if (crumbleCookie('__utmv'))
            utmv_array = crumbleCookie('__utmv').split('.');
        else
            return null;

        var value = utmv_array[1];

        return {
            'cookie': utmv_array,
            'value': value
        };
    };

    // Cookie syntax: domain-hash.ftime.?.?.utmcsr=X|utmccn=X|utmcmd=X|utmctr=X
    var utmz = function() {
        var utmz_array, source, medium, name, term, content, gclid;

        if (crumbleCookie('__utmz'))
            utmz_array = crumbleCookie('__utmz').split('.');
        else
            return null;

        var utms = utmz_array[4].split('|');
        for (var i = 0; i < utms.length; i++) {
            var key = utms[i].substring(0, utms[i].indexOf('='));
            var val = decodeURIComponent(utms[i].substring(utms[i].indexOf('=')+1, utms[i].length));
            val = val.replace(/^\(|\)$/g, '');  // strip () brackets
            switch(key)
            {
                case 'utmcsr':
                    source = val;
                    break;
                case 'utmcmd':
                    medium = val;
                    break;
                case 'utmccn':
                    name = val;
                    break;
                case 'utmctr':
                    term = val;
                    break;
                case 'utmcct':
                    content = val;
                    break;
                case 'utmgclid':
                    gclid = val;
                    break;
            }
        }

        return {
            'cookie': utmz_array,
            'source': source,
            'medium': medium,
            'name': name,
            'term': term,
            'content': content,
            'gclid': gclid
        };
    };

    // Establish public methods

    // utma cookies
    this.getDomainHash = function() { return (utma() && utma().domainhash) ? utma().domainhash : null };
    this.getUniqueId = function() { return (utma() && utma().uniqueid) ? utma().uniqueid : null };

    this.getInitialVisitTime = function() { return (utma() && utma().ftime) ? utma().ftime : null };
    this.getPreviousVisitTime = function() { return (utma() && utma().ltime) ? utma().ltime : null };
    this.getCurrentVisitTime = function() { return (utma() && utma().stime) ? utma().stime : null };
    this.getSessionCounter = function() { return (utma() && utma().sessions) ? utma().sessions : null };

    // utmb cookies
    this.getGifRequests = function() { return (utmb() && utmb().gifrequest) ? utmb().gifrequest : null };

    // utmv cookies
    this.getUserDefinedValue = function () { return (utmv() && utmv().value) ? decodeURIComponent(utmv().value) : null };

    // utmz cookies
    this.getCampaignSource = function () { return (utmz() && utmz().source) ? utmz().source : null };
    this.getCampaignMedium = function () { return (utmz() && utmz().medium) ? utmz().medium : null };
    this.getCampaignName = function () { return (utmz() && utmz().name) ? utmz().name : null };
    this.getCampaignTerm = function () { return (utmz() && utmz().term) ? utmz().term : null};
    this.getCampaignContent = function () { return (utmz() && utmz().content) ? utmz().content : null };
    this.getGclid = function () { return (utmz() && utmz().gclid) ? utmz().gclid : null };
}


function gaCookieRead()
{
	var gac = new gaCookies();

	var val = gac.getUniqueId();
	if (val != null)
	{
		_gaq.push(['_setCustomVar',
			5,				// This custom var is set to slot #1.  Required parameter.
			'VisitorID',	// The top-level name for your online content categories.  Required parameter.
			gac.getUniqueId(),		// Sets the value of "Section" to "Life & Style" for this particular aricle.  Required parameter.
			1				// Sets the scope to page-level.  Optional parameter.
		]);
		_gaq.push(['_trackEvent','Visitor', // category of activity
				   'Sample' // Action
				   ]);
		//alert(gac.getUniqueId());
		clearTimeout(mytime);
	}
	else
	{
		mytime = setTimeout('gaCookieRead()', 2000);
	}

}

mytime = setTimeout('gaCookieRead()', 10000);

var position = 0;
	var posX=0;
	var myHeight=0;
	var url;

function scrollingDetector(){

	if( typeof( window.innerWidth ) == 'number' )
	{
		myWidth = window.innerWidth; myHeight = window.innerHeight;
	} else if( document.documentElement && (document.documentElement.clientWidth ||document.documentElement.clientHeight ) ) {
					myWidth = document.documentElement.clientWidth; myHeight = document.documentElement.clientHeight;
				} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
					myWidth = document.body.clientWidth; myHeight = document.body.clientHeight;
				}
				if (navigator.appName == "Microsoft Internet Explorer"){
	//alert("You've scrolled to " + document.body.scrollTop + " pixels.");
					posX=document.body.scrollTop;
					position=posX/myHeight;
					position=position*100;
					//alert(position);
					url=location.href;
					//alert(myHeight);
					//alert(url);
					//pageTracker._trackEvent('Scroll%',''+url,'Browser Height '+myHeight , parseInt(position));
					_gaq.push(['_trackEvent', 'Scroll%', url, 'Browser Height '+myHeight , parseInt(position)]);
				}
				else
				{//alert ("You've scrolled to " + window.pageYOffset + " pixels.");
					posX=window.pageYOffset;
					position=posX/myHeight;
					position=position*100;
					url=location.href;
					//alert(url);
					//alert(position);
					//alert(myHeight);
					//pageTracker._trackEvent('Scroll%',''+url,'Browser Height' +myHeight , parseInt(position));
					_gaq.push(['_trackEvent', 'Scroll%', url, 'Browser Height '+myHeight , parseInt(position)]);
				}

	}
	window.onclick=scrollingDetector;