function DivShowmu(obj){
	obj.style.display='';
}
function DivHidemu(obj){
	obj.style.display='none';
}
function showmu(obj1,obj2,xpx){
	obj2.style.display='';
	obj2.style.top=realPosY(obj1)+obj1.clientHeight;
	if(xpx>0){
		obj2.style.left=realPosX(obj1)-xpx;
	}else{
		obj2.style.left=realPosX(obj1);
	};
}

function hidemu(obj1,obj2){
	obj2.style.display='none';
}

function realPosX(obj){
  var realX = obj.offsetLeft
  if (obj.offsetParent.tagName != "BODY") {
   realX += realPosX(obj.offsetParent); 
  } 
  return realX;
} 

function realPosY(obj){
  var realY = obj.offsetTop;
  if (obj.offsetParent.tagName != "BODY") {
   realY += realPosY(obj.offsetParent);
  }
  return realY;
}

function getObjXY(obj){
	var ox=realPosX(obj);
	var oy=realPosY(obj);
	var oxy=ox+","+oy;
	return oxy;
}