$ = function( id ){ return document.getElementById( id ) };

var oldMenuBtn;
var oldMenuBody;
function showMenu( menuBtn, menuBodyId ){
  if( oldMenuBtn ){
    oldMenuBtn.className = "";
  }
  menuBtn.className = "sel";
  oldMenuBtn = menuBtn;
  if( oldMenuBody ){
    oldMenuBody.style.display = "none";
  }
  var theMenuBody = $( menuBodyId );
  if( theMenuBody ){
    theMenuBody.className = "";
    theMenuBody.style.display = "";
    oldMenuBody = theMenuBody;
  }
    return false;
}

function doZoom(size){
	document.getElementById("content_detail").style.fontSize=size+"px";
	return false;
}

function displayFlv(){
	document.getElementById("con_img").style.display="none";
	document.getElementById("con_flv").style.display="";
	return false;
}

function today(){
  var today = new Date();
  var strToday = today.getFullYear()+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日";
  var day = today.getDay();
  var strDay = "";
  switch(day){
    case 1:strDay="一";break;
    case 2:strDay="二";break;
    case 3:strDay="三";break;
    case 4:strDay="四";break;
    case 5:strDay="五";break;
    case 6:strDay="六";break;
    default:strDay="日";
  }
  strToday += " 星期"+strDay+" ";
  return strToday;	
}

function todayen(){
  var today = new Date();
  var strToday = (today.getMonth()+1)+"/"+today.getDate()+"/"+today.getFullYear();
  var day = today.getDay();
  var strDay = "";
  switch(day){
    case 1:strDay="Mon";break;
    case 2:strDay="Tue";break;
    case 3:strDay="Wed";break;
    case 4:strDay="Thu";break;
    case 5:strDay="Fri";break;
    case 6:strDay="Sat";break;
    default:strDay="Sun";
  }
  strToday += " "+strDay+" ";
  return strToday;	
}