function jFltrClick(id) {

	var ctrl = document.getElementById(id);
	var index = id.lastIndexOf('_');
	var prefix = id.substr(0, index + 1);
	var hf = document.getElementById(prefix + 'hfFltrState');
	var isAdv = hf.value == '1';
	hf.value = !isAdv ? '1' : '0';

	var fSimple = document.getElementById(prefix + 'filterSimple');
	var fAdvanced = document.getElementById(prefix + 'filterAdvanced');

	if (isAdv) {

		ctrl.innerHTML = 'zaawansowany';
		fSimple.style.display = 'block';
		fAdvanced.style.display = 'none';
	} else {
		ctrl.innerHTML = 'prosty';
		fSimple.style.display = 'none';
		fAdvanced.style.display = 'block';
	}


	//for (var i = 0; i < 10; ++i) {
	//    ctrl = document.getElementById('ctl00_cphPage_trFltrRow' + i);
	//    if (ctrl == null) return;
	//    ctrl.style.display = (isAdv) ? 'none' : 'table-row';
	//}
}