function showAttrib(lak){
	 // pokud je definovany lak - zobrazim laky, jinak zobrzim probg3
	if (lak) {
	   document.getElementById('provbg').style.display='block';
	   if(document.getElementById('provbg3')) document.getElementById('provbg3').style.display='none';
	}
	else {
	     document.getElementById('provbg3').style.display='block';
	}
	
	document.getElementById('varianty').style.marginTop='-417px';
}
function hideAttrib(){
	if(document.getElementById('provbg')) document.getElementById('provbg').style.display='none';
	if(document.getElementById('provbg3')) document.getElementById('provbg3').style.display='none';
	document.getElementById('varianty').style.marginTop='0';
}
function nextAttrib(){
	document.getElementById('provbg').style.display='none';
	document.getElementById('provbg3').style.display='block';
}
function prevAttrib(){
	document.getElementById('provbg3').style.display='none';
	document.getElementById('provbg').style.display='block';
}
function changePic(large,big){
	$('#mainpic a').attr('href', big);
	$('#mainpic img').attr('src', large);
}

function theRotator() {
	$('div.rotator ul li').css({opacity: 0.0});
	$('div.rotator ul li:first').css({opacity: 1.0});
	setInterval('rotate()',5000);
}

function rotate() {	
	var current = ($('div.rotator ul li.show')?  $('div.rotator ul li.show') : $('div.rotator ul li:first'));
    if ( current.length == 0 ) current = $('div.rotator ul li:first');
	var next = ((current.next().length) ? ((current.next().hasClass('show')) ? $('div.rotator ul li:first') :current.next()) : $('div.rotator ul li:first'));
	next.css({opacity: 0.0})
	.addClass('show')
	.animate({opacity: 1.0}, 1000);
	current.animate({opacity: 0.0}, 1000)
	.removeClass('show');
};