function showelement(elid) {
          {
              var elements = new Array();
              elements[0] = "div1"
              elements[1] = "div2"
              elements[2] = "div3"
              elements[3] = "div4"
              elements[4] = "div5"
              var x;
              for (x in elements) {
                  var e = document.getElementById(elements[x]);
                  e.style.visibility = "hidden";
                  e.style.height = "0px";
                  e.style.overflow = "hidden";
              }
              }
            {
              var e1 = document.getElementById(elid);
              e1.style.visibility = "visible";
              e1.style.height = "auto";
          }
          var e2 = document.getElementById("rcDiv1");
          if (elid == "div1"){
              e2.style.visibility = "visible";
              e2.style.height = "auto";}
              else {
                  e2.style.visibility = "hidden";
                  e2.style.height = "0px";
                  e2.style.overflow = "hidden";
              }
      }