function changeFoto(obj){
	var imgSrc = obj.getElementsByTagName("IMG")[0].src;
	imgSrc = imgSrc.replace("/male","/detail");
	imgSrc = imgSrc.replace("/dalsinahledy","/dalsi");

	hrefEl = document.getElementById("nahled");
	hrefEl.href  = imgSrc;
	hrefEl.href = hrefEl.href.replace("/dalsi","/dalsivelke");
	hrefEl.href = hrefEl.href.replace("/detail","/zoom");
	targetEl = hrefEl.getElementsByTagName("IMG");



	if(targetEl[0]){
        targetEl[0].src = imgSrc;
	}else{
		imgEl = document.createElement('img');
		imgEl.src = imgSrc;
		hrefEl.appendChild(imgEl);
	}
}


function selectVariant(id_var,cena,mcena,nazev,img){
	document.getElementById('var_big_img').innerHTML='<img src="'+img+'" />';
	document.getElementById('sale').innerHTML = Math.round(100-((cena/mcena)*100))+'%';
	
	document.getElementById('old-price').style.display='block';
	document.getElementById('sale').style.display='block';
	
	document.getElementById('old_price').innerHTML = mcena+'<span></span>';
	document.getElementById('new_price').innerHTML = cena+',-';
	document.getElementById('radio_'+id_var).checked = true;
	document.getElementById('varId').value = id_var;
	
	if(cena==mcena){
		document.getElementById('sale').style.display='none';		
		document.getElementById('old-price').style.display='none';		
	}else{
		document.getElementById('sale').style.display='block';		
		document.getElementById('old-price').style.display='block';	
	}
	calculatorProductPrice = cena;
	document.getElementById('calculatorProductPrice').innerHTML = Math.round(cena / 10);
	if(cena > 3000) {
		document.getElementById('calculatorHolder').style.display = 'block';
	} else {
		document.getElementById('calculatorHolder').style.display = 'block';
	}
}


function vyrChanged(obj){
	vyrId = obj.value;
	
	if(vyrId == 'all'){
	    location.href = urlroot+obj.className;
	    return;
	}
	
	
	opts = obj.getElementsByTagName('option');
	for(i=0;i<opts.length;i++){
		if(opts[i].getAttribute('value') == vyrId){
			vyrName = opts[i].className;
		}
	}
	if(!vyrName)vyrName='vse';
	location.href = urlroot+'vyrobce/'+vyrId+'/'+vyrName+'/'+obj.className;
}