/*
    skrypt odpowiedzialny za wyswietlanie dymkow podpowiedzi
*/
function xstooltip_findPosX(obj) 
  {
  var curleft = 0;
  if(obj.offsetParent)
    {
    while(obj.offsetParent)
      {
      curleft += obj.offsetLeft
      obj = obj.offsetParent;
      }
    }
  else if(obj.x) curleft += obj.x;
  return curleft;
  }

function xstooltip_findPosY(obj)
  {
  var curtop = 0;
  if(obj.offsetParent)
    {
    while(obj.offsetParent)
      {
      curtop += obj.offsetTop
      obj = obj.offsetParent;
      }
    }
  else if(obj.y) curtop += obj.y;
  return curtop;
  }

function xstooltip_show(tooltipId, parentId, posX, posY)
  {
  it = document.getElementById(tooltipId);
  if((it.style.top == '' || it.style.top == 0) && (it.style.left == '' || it.style.left == 0))
    {
    // need to fixate default size (MSIE problem)
    it.style.width = it.offsetWidth + 'px';
    it.style.height = it.offsetHeight + 'px';
    img = document.getElementById(parentId);
    // if tooltip is too wide, shift left to be within parent
    if(posX + it.offsetWidth > img.offsetWidth) posX = img.offsetWidth - it.offsetWidth;
    if(posX < 0 ) posX = 0;
    x = xstooltip_findPosX(img) + posX;
    y = xstooltip_findPosY(img) + posY;
    it.style.top = y + 'px';
    it.style.left = x + 'px';
    }
  it.style.visibility = 'visible';
  }

function xstooltip_hide(id)
  {
  it = document.getElementById(id);
  it.style.visibility = 'hidden';
  }