function goto(mmain) {
  
  //alert(mmain);
  
  //¥D¿ï³æ
  if (mmain=="home") { window.open("index.php","_self"); }
  if (mmain=="aboutus") { window.open("aboutus.php","_self"); }
  if (mmain=="convention") { window.open("convention.php","_self"); }
  if (mmain=="charity") { window.open("charity/index.php","_self"); }
  if (mmain=="news") { window.open("news.php","_self"); }
  //if (mmain=="concert") { window.open("edm/concert.php","_self"); }
  if (mmain=="concert") { window.open("http://www.facebook.com/taishincharity","_blank"); }
  if (mmain=="blog") { window.open("blog.php","_self"); }
  if (mmain=="bag") { window.open("#","_self"); }
  if (mmain=="music") { window.open("music_list.php","_self"); }
  if (mmain=="facebook") { window.open("http://www.facebook.com/pages/tai-bei-shi-zi-mei-li-ai-xin-guan-huai-xie-hui-LS-Charity-Association/372548402650?ref=search&sid=1481015552.4113383580..1","_blank"); }
  if (mmain=="member") { window.open("charity/join.php","_self"); }
  if (mmain=="volunteer") { window.open("edm990617/index.php","_self"); }
  
};