/* <![CDATA[ */

function showTip(ev)
{
  if(!ev) { ev = window.event; };

  var infotext = '';

  for(var n=0; n<this.childNodes.length; n++)
  {
	  if(this.childNodes[n].tagName == "SPAN")
	  {
		  infotext = this.childNodes[n].innerHTML; break;
	  }
  }

  if(infotext.length)
  {
	  infodiv = document.getElementById('info');
	  infodiv.innerHTML = infotext;
  
	  infodiv.style.display = 'block';

	  var scrollOffset = getScrollOffset();

	  infodiv.style.top  = ev.clientY + scrollOffset[1] + 20 + 'px';
	  infodiv.style.left = ev.clientX + scrollOffset[0] + 20 + 'px';
  }
}

function hideTip()
{   document.getElementById('info').style.display = 'none';   }

function initTooltips()
{
  var infodiv = document.createElement('DIV');
  infodiv.id = 'info';
  document.getElementsByTagName('body')[0].appendChild(infodiv);

  var liste = document.getElementsByTagName('A');

  for (var n=0; n<liste.length; n++)
  {
	  if(liste[n].className.match( /tooltip/ ))
	  {
		  liste[n].onmousemove = showTip;
		  liste[n].onmouseout  = hideTip;
	  }
  }
}

function getScrollOffset()          // Funktionskörper von quirksmode.org
{
  var x = 0, y = 0;
  if (self.pageYOffset)          // all except Explorer
  {
	  x = self.pageXOffset;
	  y = self.pageYOffset;
  }
  else if (document.documentElement && document.documentElement.scrollTop)
		   // Explorer 6 Strict
  {
	  x = document.documentElement.scrollLeft;
	  y = document.documentElement.scrollTop;
  }
  else if (document.body)           // all other Explorers
  {
	  x = document.body.scrollLeft;
	  y = document.body.scrollTop;
  };
  return new Array(x,y);
}

/* ]]> */