window.defaultStatus='Galerie-Harfa';

function odstraneni_textu(prvek) {
	prvek.value='';
}

function spusteni_animace(smer) {
	var rychlost = 30; 	// rychlost posunu v milisekundach
	var velikost = 12;		// velikost posunu v px
	var sirka = -3400;		// šířka divu
	var marginLeft = parseInt(document.getElementById("prezentace").style.marginLeft);
	switch(smer){
		case "vlevo":
			document.getElementById("prezentace").style.marginLeft = marginLeft-velikost+"px";
			if (marginLeft < sirka) smer = "vpravo";
			break;
		case "vpravo":
			document.getElementById("prezentace").style.marginLeft = marginLeft+velikost+"px";
			if (marginLeft > 0) smer = "vlevo";
			break;
	}
	casovac = setTimeout("spusteni_animace('"+smer+"')",rychlost);
}

function prezentace_log() {
	var rychlost = 30; 	// rychlost posunu v milisekundach
	var velikost = 2;		// velikost posunu v px
	var marginLeft = parseInt(document.getElementById("prezentace").style.marginLeft);
	if (marginLeft < -4295) {
		document.getElementById("prezentace").style.marginLeft = "0px";
	}
	else {
		document.getElementById("prezentace").style.marginLeft = marginLeft-velikost+"px";
	}
	casovac = setTimeout("prezentace_log()",rychlost);
}

function zastaveni_animace() {
	clearTimeout(casovac);
}

function zobrazeni_patra(cislo) {
	var pocet = 0;
	while (document.getElementById("patro"+(pocet+1))) {
		pocet++;
	}
	for (i=0; i<=pocet; i++) {
		document.getElementById("patro"+i).style.display = "none";
	}
	document.getElementById("patro"+cislo).style.display = "block";
}

function odpocitavani_casu() {
	today = new Date();
	BigDay = new Date("11:11 november 11 2010");
	msPerDay = 24 * 60 * 60 * 1000 ;
	timeLeft = (BigDay.getTime() - today.getTime());
	e_daysLeft = timeLeft / msPerDay;
	daysLeft = Math.floor(e_daysLeft);
	e_hrsLeft = (e_daysLeft - daysLeft)*24;
	hrsLeft = Math.floor(e_hrsLeft);
	minsLeft = Math.floor((e_hrsLeft - hrsLeft)*60);
	hrsLeft = hrsLeft;
	e_minsLeft = (e_hrsLeft - hrsLeft)*60;
	secLeft = Math.floor((e_minsLeft - minsLeft)*60);
	secLeft = secLeft;
	document.getElementById("dni").innerHTML = daysLeft+", ";
	document.getElementById("hodin").innerHTML = hrsLeft+", ";
	document.getElementById("minut").innerHTML = minsLeft+", ";
	document.getElementById("vterin").innerHTML = secLeft;
	setTimeout("odpocitavani_casu()",1000);
}