var baseElements = document.getElementsByTagName('base');

BASE_URL = baseElements[0].href;

function getSubCategories(category)
{
  $('roztec').disabled = (category > 0);
  
  if($F('roztec') > 0)
	  $('category').disabled = true;

  new Ajax.Request(BASE_URL + 'search/subcat',{
	  method: 'post',
	  parameters: {cat: category},
	  onComplete: function(transport)
	  {
	    var content = '';
			if(transport.responseText != '') {
				$('subCategoryTd').innerHTML = transport.responseText;
			}
	  }
	});

}

function zmena_roztece(v)
{
	$('category').disabled = (v > 0);
}