//上、下动画
$(document).ready(function() {						   
  $('#dateTable tr:odd').each(function(index){
	$(this).addClass('answ' + (index+1));								   
	$('.answ' + (index+1)).addClass('hidden');
  });
  
  $('#dateTable tr:even').each(function(index){
	$(this).addClass('ques' + (index+1));
	$(this).find('td:eq(1) img').addClass('arrow' + (index+1));
	
	$('.ques' + (index+1)).toggle(function() {
		$('.answ' + (index+1)).removeClass('hidden');
		$('.arrow' + (index+1)).attr("src","images/down_arrow.gif");
	  },
	  function(){
		$('.answ' + (index+1)).addClass('hidden');
		$('.arrow' + (index+1)).attr("src","images/blue_arrow.gif");
	});
	
	$('.ques' + (index+1)).hover(function() {
        $(this).addClass('hover');
      }, function() {
        $(this).removeClass('hover');
    });
  });
});