function flip(id)
{
 if ( !document.getElementById(id) ) return;
 if ( document.getElementById(id).style.display == "none" )
 {
 document.getElementById(id).style.display = "block";
 document.getElementById("bild_" + id).src = "minus.gif";
 }
 else
 {
 document.getElementById(id).style.display = "none";
 document.getElementById("bild_" + id).src = "plus.gif";
 }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0

  window.open(theURL,winName,features);

}
//-->