$(document).ready(function(){
    lastBlock = $("#a1");
    maxWidth = 300;
    minWidth = 50;	

    $(".accordion ul li a").hover(
      function(){
        $(lastBlock).animate({width: minWidth+"px"}, { queue:false, duration:400 });
	$(this).animate({width: maxWidth+"px"}, { queue:false, duration:400});
	lastBlock = this;
      }
    );
});

$(document).ready(function()
{
  //hide the all of the element with class msg_body
  $(".msg_body").hide();
  //toggle the componenet with class msg_body
  $(".msg_head").click(function()
  {
    $(this).next(".msg_body").slideToggle(600);
  });
});