function storeForm()
{
	var sf = document.getElementById('filter_form');	
	sf.submit();
	
}

function warning_selection(what)
{

    if(what=='main_region') {
        document.getElementById('main_region_selection').style.border='2px solid red';
        alert('Vyberte najprv kraj');        
    }

    else if(what=='sub_region') {
        document.getElementById('sub_region_selection').style.border='2px solid red';
        alert('Vyberte najprv mesto / mestskú časť.');
    }

    else if(what=='sub_category') {
        document.getElementById('sub_category_selection').style.border='2px solid red';
        alert('Vyberte najprv kategóriu.');
    }

}