/**
 *  Objekt pro praci s tooltipy
 *
 *  obsah tooltipu se nachazi v divech, jejichz obsah se nakopiruje do hlavniho
 *  tolltip DIVka a zobrazi se podle pozice kurzoru mysi
 *  obsah divka je dan systemove a nejde menit, lze pouze pomoci CSS
 *
 *  jedna se o upravenou knihovnu SweetTitles, ale ta pracuje primo
 *  s title hodnotami v odkazech http://www.dustindiaz.com/sweet-titles/
 */

var htmlTitles = {

	xCord     : 0,
	yCord     : 0,
	obj       : Object,
	tip       : Object,
	tID       : Object,
	opacityID : Object,
	outID     : 0,
	content   : '',

    /**
     *  init - vola se pri onload (na konci tohoto skriptu), inicializace promennych,
     *         vytvori se hlavni tooltip DIV element absolutne pozicovany a skryty
     *         na konci body
     */
    init : function() {
        if ( !document.getElementById ||
            !document.createElement ||
            !document.getElementsByTagName ) {
            return;
        }
        htmlTitles.tip = document.createElement('div');
        document.getElementsByTagName('body')[0].appendChild(htmlTitles.tip);
        htmlTitles.tip.id = 'toolTip';
        htmlTitles.tip.style.top = '0';
        htmlTitles.tip.style.visibility = 'hidden';
        htmlTitles.tip.title = '';
        addEvent(htmlTitles.tip, 'mouseover', this.setTipOn);
        addEvent(htmlTitles.tip, 'mouseout', this.setTipOut);
    },

    /**
     * metoda pro zobrazeni tooltipu k zadanemu objektu - tagu
     * vola se na prislusnem miste jako onmouseover="htmlTitles.tipOver(this, event, 'pojem_obsah_id')"
     * kde pojem_obsah_id je ID elementu, kde je pripraven obsah
     * @public
     */
    tipOver : function(obj, e, contentID) {
		htmlTitles.obj = obj;
		htmlTitles.content = document.getElementById(contentID).innerHTML;
		tID = window.setTimeout("htmlTitles.tipShow()",100);
		htmlTitles.setPositionByMouse(e);
	},


    /**
     * metoda ke skryti tooltipu
     * vola se jako onmouseout="htmlTitles.setTipOut();"
     * @public
     */
    tipOut : function() {
		if ( window.tID ) {
			clearTimeout(tID);
		}
		if ( window.opacityID ) {
			clearTimeout(opacityID);
		}
		htmlTitles.tip.style.visibility = 'hidden';
	},

    /**
     *  zjisti a nastavi pozici mysi
     *  @private
     */
    setPositionByMouse : function (e) {
        var scroolx = (window.pageXOffset) ? (window.pageXOffset) : (document.documentElement && document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
        var scrooly = (window.pageYOffset) ? (window.pageYOffset) : (document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
		if ( document.captureEvents ) {
			htmlTitles.xCord = e.pageX;
			htmlTitles.yCord = e.pageY;
		} else if ( window.event.clientX ) {
			htmlTitles.xCord = scroolx+window.event.clientX;
			htmlTitles.yCord = scrooly+window.event.clientY;
		}
    },


    /**
     *  zobrazi tooltip - spocita souradnice a provede postupne zobrazeni pomoci opacity
     *  @private
     */
    tipShow : function() {
		var scrX = Number(this.xCord);
		var scrY = Number(this.yCord);
		var tp = parseInt(scrY+15);
		var lt = parseInt(scrX+10);
		var anch = htmlTitles.obj;

		htmlTitles.tip.innerHTML = htmlTitles.content;
		
		/*
        if ( parseInt(document.documentElement.clientWidth+document.documentElement.scrollLeft) < parseInt(htmlTitles.tip.offsetWidth+lt) ) {
			htmlTitles.tip.style.left = parseInt(lt-(htmlTitles.tip.offsetWidth+10))+'px';
		} else {
        }
        */
		htmlTitles.tip.style.left = lt+'px';
		
		/*
        if ( parseInt(document.documentElement.clientHeight+document.documentElement.scrollTop) < parseInt(htmlTitles.tip.offsetHeight+tp) ) {
			htmlTitles.tip.style.top = parseInt(tp-(htmlTitles.tip.offsetHeight+10))+'px';
		} else {
        }
        */
		htmlTitles.tip.style.top = tp+'px';
		
		htmlTitles.tip.style.visibility = 'visible';
		htmlTitles.tip.style.opacity = '.1';
		this.tipFade(10);
		this.setTipOn();
	},
	

    /**
     *  nastavi akci skryti se zpozdenim, muze byt zrusena
     *  @private
     */
    setTipOut : function () {
        if(htmlTitles.outID) {
            clearTimeout(htmlTitles.outID);
        }
        htmlTitles.outID = window.setTimeout("htmlTitles.tipOut()", 2000);
        //htmlTitles.tip.innerHTML = 'SPUSTENO';
	},

    /**
     *  zruseni akce skryvani
     *  @private
     */
    setTipOn : function () {
        //htmlTitles.tip.innerHTML = 'ZASTAVENO';
        if(htmlTitles.outID) {
            clearTimeout(htmlTitles.outID);
        }
	},


    /**
     *  metoda pro postupne skryti
     *  @private
     */
    tipFade : function(opac) {
		var passed = parseInt(opac);
		var newOpac = parseInt(passed+10);
		if ( newOpac < 80 ) {
			htmlTitles.tip.style.opacity = '.'+newOpac;
			htmlTitles.tip.style.filter = "alpha(opacity:"+newOpac+")";
			opacityID = window.setTimeout("htmlTitles.tipFade('"+newOpac+"')",20);
		}
		else {
			htmlTitles.tip.style.opacity = '1';
			htmlTitles.tip.style.filter = "alpha(opacity:100)";
		}
	}
};


/**
 * EVENTS managment
 * @private
 */
Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();

addEvent(window,'unload',EventCache.flush);


/* pro onload - spusteni initu htmlTooltipu */
function pageLoader() {
	htmlTitles.init();
}

/* pridana inicializace na onload dokumentu*/
addEvent(window,'load', pageLoader);