//------------------------------------------------------------------------------
//  Bublina
//  - zobrazuje popis v rámečku vedle myši...                  
//------------------------------------------------------------------------------

// Detect if the browser is IE or not.
// If it is not IE, we assume that the browser is NS.
var IE = document.all?true:false

// If NS -- that is, !IE -- then set up for mouse capture
if (!IE) document.captureEvents(Event.MOUSEMOVE)

// Set-up to use getMouseXY function onMouseMove
document.onmousemove = getMouseXY;

// Temporary variables to hold mouse x-y pos.s
var tempX = 0
var tempY = 0

// Main function to retrieve mouse x-y pos.s

function getMouseXY(e) {

  if (IE) { // grab the x-y pos.s if browser is IE
    tempX = event.clientX + document.body.scrollLeft
    tempY = event.clientY + document.body.scrollTop
  } else {  // grab the x-y pos.s if browser is NS
    tempX = e.pageX
    tempY = e.pageY
  }
  // catch possible negative values in NS4
  if (tempX < 0){tempX = 0}
  if (tempY < 0){tempY = 0}
  // ě the position values in the form named Show
  // in the text fields named MouseX and MouseY
  document.Show.MouseX.value = tempX
  document.Show.MouseY.value = tempY
  document.getElementById('helper').style.left = tempX + 20;
  document.getElementById('helper').style.top = tempY + 20;
  return true
}

function showhelp(a) {
   document.getElementById('helper').style.visibility='visible';
   document.getElementById('helper').style.display='block';
   document.getElementById('helper').innerHTML=a;

}

function hideAltTitle(obj){
    obj.alt = '';
    obj.title = '';
}

function hidehelp() {
   document.getElementById('helper').style.visibility='hidden';
   document.getElementById('helper').style.display='none';
}