// -------------------------------------------------------------
// -      Set CSS class for element
// -------------------------------------------------------------
function setCSSClass(elmID, cssClassName)
{
   var obj;
   obj = document.getElementById(elmID);
   if ( obj && obj.className )
   {
      obj.className = cssClassName;
   }
}
// -------------------------------------------------------------
// -      Hide element
// -------------------------------------------------------------
function hideElement(elmID, bBlock ){
  var obj;
  obj = document.getElementById(elmID);
  if ( elmID ){
    if ( obj && obj.style ) {
      if ( bBlock ){
        obj.style.display    = "none";
      }
      else{
        obj.style.visibility = "hidden";
      }
    }
  }
}
// -------------------------------------------------------------
// -      Show element
// -------------------------------------------------------------
function showElement(elmID, nTop, nLeft, bBlock){
  var obj;
  obj = document.getElementById(elmID);
  if ( obj && obj.style ) {
    if ( nTop && nLeft ){
      obj.style.top  = nTop;
      obj.style.left = nLeft;
    }
    if ( bBlock ){
      obj.style.display    = "block";
    }
    else{
      obj.style.visibility = "visible";
    }
  }
}

// -------------------------------------------------------------
// -      Function which check browser
// -------------------------------------------------------------
function IsMozilla()
{
  	var ua=navigator.userAgent.toLowerCase() 
  	var isGecko = (ua.indexOf('gecko') != -1);
	if (isGecko && ua.indexOf("gecko/") + 14 == ua.length) 
	return true

	return false
}