function toggle(obj,sender)
{
    var el = document.getElementById(obj);
    var a = document.getElementById(sender);
	el.style.display = (el.style.display != 'none' ? 'none' : '' );
	a.innerText =  (el.style.display == 'none' ? unescape("%BB mehr") : unescape("%BB schlie%DFen"));	
}