function showNyu(SubNyukou) {
   var repNameNyukou = "url(http://202.164.255.109/images/menu_e_01.gif)";
   document.getElementById('MenuNyukou').style.backgroundImage = repNameNyukou;
   document.getElementById('SubNyukou').style.visibility = 'visible';
}
function hideNyu(SubNyukou) {
   var repNameNyukou = "url(http://202.164.255.109//images/menu_o_01.gif)";
   document.getElementById('MenuNyukou').style.backgroundImage = repNameNyukou;
   document.getElementById('SubNyukou').style.visibility = 'hidden';
}
function showKyo(SubKyosyu) {
   var repNameKyosyu = "url(http://202.164.255.109//images/menu_e_02.gif)";
   document.getElementById('MenuKyosyu').style.backgroundImage = repNameKyosyu;
   document.getElementById('SubKyosyu').style.visibility = 'visible';
}
function hideKyo(SubKyosyu) {
   var repNameKyosyu = "url(http://202.164.255.109//images/menu_o_02.gif)";
   document.getElementById('MenuKyosyu').style.backgroundImage = repNameKyosyu;
   document.getElementById('SubKyosyu').style.visibility = 'hidden';
}
function showFee(SubFee) {
   var repNameFee = "url(http://202.164.255.109//images/menu_e_03.gif)";
   document.getElementById('MenuFee').style.backgroundImage = repNameFee;
   document.getElementById('SubFee').style.visibility = 'visible';
}
function hideFee(SubFee) {
   var repNameFee = "url(http://202.164.255.109/images/menu_o_03.gif)";
   document.getElementById('MenuFee').style.backgroundImage = repNameFee;
   document.getElementById('SubFee').style.visibility = 'hidden';
}
function showIntro(SubIntro) {
   var repNameIntro = "url(http://202.164.255.109//images/menu_e_04.gif)";
   document.getElementById('MenuIntro').style.backgroundImage = repNameIntro;
   document.getElementById('SubIntro').style.visibility = 'visible';
}
function hideIntro(SubIntro) {
   var repNameIntro = "url(http://202.164.255.109/images/menu_o_04.gif)";
   document.getElementById('MenuIntro').style.backgroundImage = repNameIntro;
   document.getElementById('SubIntro').style.visibility = 'hidden';
}
function showBus(SubBus) {
   var repNameBus = "url(http://202.164.255.109//images/menu_e_05.gif)";
   document.getElementById('MenuBus').style.backgroundImage = repNameBus;
   document.getElementById('SubBus').style.visibility = 'visible';
}
function hideBus(SubBus) {
   var repNameBus = "url(http://202.164.255.109//images/menu_o_05.gif)";
   document.getElementById('MenuBus').style.backgroundImage = repNameBus;
   document.getElementById('SubBus').style.visibility = 'hidden';
}