/* usd21 js lib. */
function toggle(idA,idB) {
       var e1 = document.getElementById(idA);
       var e2 = document.getElementById(idB);
       if(e1.style.display == 'block')
          e1.style.display = 'none';
       else
          e1.style.display = 'block';

       if(e2.style.display == 'block')
          e2.style.display = 'none';
       else
          e2.style.display = 'block';
    }

function switchSearchForms(idA,idB,ONOFF) {
       var e1 = document.getElementById(idA);
       var e2 = document.getElementById(idB);
       e1.style.display = ONOFF;
       e2.style.display = ONOFF;
    }