offen = false;

var offen = new Array();

function flipS (divid, imid, nr) {
         if (!offen[nr]) {
            new Effect.SlideDown(divid);
            offen[nr] = true;
            imid.src = './images/iconMoveUp.gif';
            }
         else {
              new Effect.SlideUp(divid);
              offen[nr] = false;
              imid.src = './images/iconMoveDown.gif';
         }
}