function go(perPage, brand)
{
	box = document.forms['sort'].sortBy;
	destination = box.options[box.selectedIndex].value;
	if (destination)
	{
		if (perPage)
		{
			location.href = '?sortBy=' + destination + '&perPage=' + perPage +'&brand=' + brand;
		}
		else
		{
			location.href = '?sortBy=' + destination + '&brand=' + brand;
		}
	}
}
function goForBrand(perPage)
{
	box = document.forms['marka'].brand;
	selectedBrand = box.options[box.selectedIndex].value;
	if (selectedBrand)
	{
		if (perPage)
		{
			location.href = '?brand=' + selectedBrand + '&perPage=' + perPage;
		}
		else
		{
			location.href = '?brand=' + selectedBrand;
		}
	}
}