/*ツリーメニュー*/
function treeMenu(id) {
  var ss = navigator.appVersion.substring(0,1);
  var sflg ="false";

  //Netscape
  if (navigator.appName=="Netscape") {
    //Netscape ver4
    if (4==ss) {
     var stl = document.layers(id).style;
     sflg = "true";
    } else {
     //Netscape ver
     var stl = document.getElementById(id).style;
     sflg ="true";
    }
  //IE
  } else if (navigator.appName=="Microsoft Internet Explorer") {
    var stl = document.all(id).style;
    sflg = "true";
  //Opera
  } else if (window.opera){
    var stl = document.all(id).style;
    sflg = "true";
  }



  //実行
  if (sflg == "true"){
    if(stl.display != "none" || stl.display == "") {
      stl.display = "none";
    } else {
      stl.display = "block";
    }
  }
}



/*画像変換*/
function ChangePicture(strImageName, strUrl){
 strImageName.src = strUrl;
}