var nactenaPozadi = new Array();
var aktualniPozadi = '';
var backgroundTimer;
var firstBgChange = true;

$(document).ready(function() {

	$("div.tipy-tip, div.mainpagebox-photos-fotka").hover (showTipsBubble, hideTipsBubble);

	aktualniPozadi = $('#pozadi-stranky-1').css("background-image").replace(/^.*['"](.*)['"].*$/, "$1");

	$("#main2 img.main-pozadi").each(function() {
		if(this.complete) {
			nactenaPozadi[nactenaPozadi.length] = $(this).attr("src");
		} else {
			$(this).load(function() {
				nactenaPozadi[nactenaPozadi.length] = $(this).attr("src");
			});
		}
	});

	backgroundTimer = window.setInterval(fadeBackgrounds, 10000);

});

function showTipsBubble() {
	$(this).find(".tipy-bubble, .mainpagebox-photo-bubble").css("display", "block");
	$(this).find(".tipy-bubble, .mainpagebox-photo-bubble").stop().animate({
		opacity: 0.8
	}, "slow");
}

function hideTipsBubble() {
	$(this).find(".tipy-bubble, .mainpagebox-photo-bubble").stop().animate({
		opacity: 0.0
	}, "slow", "swing", function() {$(this).css("display", "none");});
}

function fadeBackgrounds() {
	if (firstBgChange) {
		window.clearInterval(backgroundTimer);
		backgroundTimer = setInterval(fadeBackgrounds, 15000);
		firstBgChange = false;
	}
	var novePozadi = '';
	if (nactenaPozadi.length > 0) {
		for (var i = 0; i < 10; i++) {
			var pozadi = nactenaPozadi[Math.floor(Math.random()*nactenaPozadi.length)];
			if (pozadi != aktualniPozadi) {
				novePozadi = pozadi;
				break;
			}
		}
	}
	if (novePozadi != '') {
		$('#pozadi-stranky-2').css('background-image', 'url("'+novePozadi+'")');
		$('#pozadi-stranky-1').fadeOut(5000, function(){
			aktualniPozadi = novePozadi;
			$('#pozadi-stranky-1').css('background-image', 'url("'+novePozadi+'")');
			$('#pozadi-stranky-1').show();
		});
	}
}

var puv_vyska_menu;

function leftMenuHeight()
	{
//	if (document.getElementById('levy').clientHeight < (document.getElementById('obsah_clearing_vychytavac').clientHeight + 70))
	if (puv_vyska_menu < (document.getElementById('obsah_clearing_vychytavac').clientHeight + 70))
		{
		document.getElementById('levy').style.height = (document.getElementById('obsah_clearing_vychytavac').clientHeight + 70) + 'px';
		}
	}


function onLoadMenuHeight()
	{
	puv_vyska_menu = document.getElementById('levy').clientHeight;
	leftMenuHeight();
	}


function potvrditAkci(hlaska)
	{
	return window.confirm(hlaska);
	}

/* zvyraznovani radku tabulky */
function light(rid) {
	document.getElementById('tr_'+rid).style.backgroundColor = '#e0e1e5';
	document.getElementById('tr_'+rid).style.cursor = 'pointer';
}

function dark(rid) {
	document.getElementById('tr_'+rid).style.backgroundColor = '';
}

function light_u(ridu) {
	document.getElementById('t_'+ridu).style.backgroundColor = '#e0e1e5';
	document.getElementById('t_'+ridu).style.cursor = 'pointer';
}

function dark_u(ridu) {
	document.getElementById('t_'+ridu).style.backgroundColor = '';
}

function OpenURL(a,b,c) {
	window.open(a,b,c);
	return false;
}