function eins() {
		$("#lexikon dd").hide();
		$("dd").addClass("def")
		
		
		 $("dt").click(function(event) {
               var mybody = this;
               while (mybody = mybody.nextSibling) {
                       if (mybody.className == "def") break;
               };
               if (!mybody) return;
               $(mybody).toggle();
               event.preventDefault();
       });
		
}

<!-- When the page is ready - call FunkyStuff -->
$(document).ready(eins);