function blink( id )
{

   setVisible(id,'sichtbar', '');
   setTimeout("setVisible( '" + id + "','unsichtbar')",2000);
}

function doAnim()
{
   if( !document.all )
     return false;
     
   setTimeout("blink( 'B6' )", 1);
   setTimeout("blink( 'B7' )", 2000);
   setTimeout("blink( 'B8' )", 4000);

   setTimeout("doAnim()",6000);


}

setTimeout("doAnim()",3000);

function setVisible( img, state )
{

   if (document.layers)
   {
      if( state == "sichtbar" )
         document.getElementById(img).visibility = "show";
      else
         document.getElementById(img).visibility = "hide";
   }
   else
   {
      if( state == "sichtbar" )
      {

         if( document.all ) // IE
         {
            document.getElementById(img).filters.blendTrans.Apply();
            document.getElementById(img).style.visibility = "visible";
            document.getElementById(img).filters.blendTrans.Play();
         }
         else
            document.getElementById(img).style.visibility = "visible";
      }
      else
      {
         if(document.all ) // IE
         {
            document.getElementById(img).filters.blendTrans.Apply();
            document.getElementById(img).style.visibility = "hidden";
            document.getElementById(img).filters.blendTrans.Play();
         }
         else
            document.getElementById(img).style.visibility = "hidden";
      }
   }
}