function reset_b(fm){
	fm.lat.value = "";
	fm.lng.value = "";
	fm.zoom.value = "";
	for(i=0;i<fm.elements['c[]'].length; i++){
		fm.elements[i].checked=false;
	}
	fm.k.value = "";
	fm.submit();
}

function reset_list_b(fm){
	fm.a.value = "";
	for(i=0;i<fm.elements['s[]'].length; i++){
		fm.elements[i].checked=false;
	}
	fm.k.value = "";
	fm.submit();
}