var Tpop = 0;

function findPos(obj) {
  x=0; y=0;
  var temp;

  if (obj.offsetParent) {
    temp = obj;
    while (temp.offsetParent) {
      temp=temp.offsetParent;
      x+=temp.offsetLeft
      y+=temp.offsetTop;
    }
  }

  x+=obj.offsetLeft;
  y+=obj.offsetTop;
  return [x,y];
}


function ShowPopUp(txt, obj, id) {
  HidePopUp();

  document.getElementById('popText').innerHTML = '<nobr>'+txt+'</nobr>';

  var p = findPos(obj);

  document.getElementById('PopupLayer').style.left = p[0]+10;
  document.getElementById('PopupLayer').style.top = p[1];
  document.getElementById('PopupLayer').style.display = '';

  document.getElementById('IM'+id).src = '/img/_m.gif';
  Tpop = id;
}


function HidePopUp() {
  document.getElementById('PopupLayer').style.display = 'none';

  if (Tpop != 0) {
    document.getElementById('IM'+Tpop).src = '/img/m.gif';
  }
}