function markPlace(classname) {
	$(classname + '_text').addClassName('place-text-underline');
	$(classname + '_point').removeClassName('point_pre');
	$(classname + '_point').addClassName(classname + '_point');

}

function removeMarkPlace(classname) {
	$(classname + '_text').removeClassName('place-text-underline');
	$(classname + '_point').addClassName('point_pre');
	$(classname + '_point').removeClassName(classname + '_point');
}