myID = "myID_Menu";                  // DIVタグで付けたID

myObj = 0;           // 使用ブラウザのSTYLEオブジェクト用

function myGetBrowser(){            // ブラウザを判断する
   myOP = window.opera;             //OP
   myN6 = document.getElementById;  // N6 or IE
   myIE = document.all;             // IE
   myN4 = document.layers;          // N4

   if (myOP){                          // OP?
      document.ondblclick = myClickIE;
   }else if (myIE){                    // IE?
      document.ondblclick = myClickIE;
   }else if (myN6){                    // N6?
      window.addEventListener("dblclick",myClickN6,true);
   }else if (myN4){                    // N4?
      window.captureEvents(Event.DBLCLICK);
      window.ondblclick = myClickN4;
   }
}

function myClickOP(){  // OPでダブルクリック
  myObj=document.getElementById(myID).style;
  myObj.left = window.event.clientX + "px";
  myObj.top  = window.event.clientY + "px";
  myObj.visibility = "visible";
}
function myClickN6(myEvent){  // N6でＷクリック
  myObj=document.getElementById(myID).style;
  myObj.left = myEvent.clientX + window.pageXOffset + "px";
  myObj.top  = myEvent.clientY + window.pageYOffset + "px";
  myObj.visibility = "visible";
}
function myClickIE(){ // IEでＷクリック
  myObj=document.all[myID].style;
  myObj.left = window.event.clientX + document.body.scrollLeft + "px";
  myObj.top  = window.event.clientY + document.body.scrollTop + "px";
  myObj.visibility = "visible";
}
function myClickN4(myEvent){ // N4でＷクリック
  myObj=document[myID];
  myObj.left = myEvent.x ;
  myObj.top  = myEvent.y ;
  myObj.visibility = "visible";
}

function myHidden(){
  myObj.visibility = "hidden";
}