function toggleTick(item) {
	if (item.style.listStyleImage == "url(/images/check_on.gif)" 
			|| item.style.listStyleImage == "url(\"http://www.longwoodonline.hu/images/check_on.gif\")") { //opera
		item.style.listStyleImage = "url(/images/check_off.gif)";
	} else {
		item.style.listStyleImage = "url(/images/check_on.gif)";
	}
}

function toggleDependentItem(item) {
	if ($(item).disabled) {
		$(item).disabled = false;
		$(item+'Label').style.color = '#000';
	} else {
		$(item).disabled = true;
		$(item+'Label').style.color = '#666';
	}
}