/*
	jQuery Plugin spy (leftlogic.com/info/articles/jquery_spy2)
	(c) 2006 Remy Sharp (leftlogic.com)
	$Id: spy.js,v 1.4 2006/09/30 11:05:04 remy Exp $
*/
var spyRunning = 1;

$.fn.spy = function(settings) {
    var spy = this;
    spy.epoch = new Date(1970, 0, 1);
    spy.last = '';
    spy.parsing = 0;
    spy.waitTimer = 0;
    spy.json = null;

    if (!settings.ajax) {
        alert("An AJAX/AJAH URL must be set for the spy to work.");
        return;
    }

    spy.attachHolder = function() {
        // not mad on this, but the only way to parse HTML collections
        if (o.method == 'html') {
            DomFixTry();
            $('body').append('<div style="display: none!important;" id="_spyTmp"></div>');
        }
    }

    // returns true for 'no dupe', and false for 'dupe found'
    // latest = is latest ajax return value (raw)
    // last = is previous ajax return value (raw)
    // note that comparing latest and last if they're JSON objects
    // always returns false, so you need to implement it manually.
    spy.isDupe = function(latest, last) {
        if ((last.constructor == Object) && (o.method == 'html'))
            return (latest.html() == last.html());
        else if (last.constructor == String)
            return (latest == last);
        else
            return 0;
    }

    spy.timestamp = function() {
        var now = new Date();
        return Math.floor((now - spy.epoch) / 1000);
    }

    spy.parse = function(e, r) {
        DomFixTry();
        spy.parsing = 1; // flag to stop pull via ajax
        if (o.method == 'html') {
            $('div#_spyTmp').html(r); // add contents to hidden div
        }

        if (o.method == 'html') {
            if (spy.parseItem(e)) {
                spy.waitTimer = window.setInterval(function() {
                    if (spyRunning) {
                        if (!spy.parseItem(e)) {
                            spy.parsing = 0;
                            clearInterval(spy.waitTimer);
                        }
                    }
                }, o.pushTimeout);
            } else {
                spy.parsing = 0;
            }
        }
    }

    // returns true if there's more to parse
    spy.parseItem = function(e) {
        // note: pre jq-1.0 doesn't return the object
        DomFixTry();
        var i = $('div#_spyTmp').find('div.infos:first').remove();
        if (i.size() > 0) {
            i.hide();
            spy.addItem(e, i);
        }
        return ($('div#_spyTmp').find('div.infos').size() != 0);
    }

    spy.addItem = function(e, i) {
        DomFixTry();
        if (!o.isDupe.call(this, i, spy.last)) {
            spy.last = i; // note i is a pointer - so when it gets modified, so does spy.last
            $('#' + e.id + ' > div.infos:gt(' + (o.limit - 2) + ')').remove();
            $('#' + e.id + ' > div.infos:gt(' + (o.limit - o.fadeLast - 2) + ')').fadeEachDown();
            o.push.call(e, i);
            $('#' + e.id + ' > div.infos:first').fadeIn(o.fadeInSpeed);
        }
    }

    spy.push = function(r) {
        DomFixTry();
        $('#' + this.id).prepend(r);
        //$('#' + this.id + ' > div.infos').toggleClass("dark");
    }

    var o = {
        limit: (settings.limit || 10),
        fadeLast: (settings.fadeLast),
        ajax: settings.ajax,
        timeout: (settings.timeout || 3000),
        pushTimeout: (settings.pushTimeout || settings.timeout || 3000),
        method: (settings.method || 'html').toLowerCase(),
        push: (settings.push || spy.push),
        fadeInSpeed: (settings.fadeInSpeed || 'slow'), // 1400 = crawl
        timestamp: (settings.timestamp || spy.timestamp),
        isDupe: (settings.isDupe || spy.isDupe)
    };

    spy.attachHolder();

    return this.each(function() {
        var e = this;
        var timestamp = o.timestamp.call();
        var lr = ''; // last ajax return
        spy.ajaxTimer = window.setInterval(function() {
            if (spyRunning && (!spy.parsing)) {
                $.post(o.ajax, { 'timestamp': timestamp }, function(r) {
                    spy.parse(e, r);
                });
                timestamp = o.timestamp.call();
            }
        }, o.timeout);
    });
};

$.fn.fadeEachDown = function() {
	var s = this.size();
	return this.each(function(i) {
		var o = 1 - (s == 1 ? 0.5 : 0.85/s*(i+1));
		var e = this.style;
		if (window.ActiveXObject)
			e.filter = "alpha(opacity=" + o*100 + ")";
		e.opacity = o;
	});
};

function pauseSpy() {
	spyRunning = 0; return false;
}

function playSpy() {
	spyRunning = 1; return false;
}

function DomFixTry() {
    try {
        DomFix(); //Added to call the fix script
    }
    catch (e) {
        //skip error if function is not present
    } 
}