var nprev,ntagprev;function nshow(obj){if(nprev==null){nprev=document.getElementById("ncon1")};nprev.style.display="none";document.getElementById("ncon"+obj).style.display="block";nprev=document.getElementById("ncon"+obj);if(ntagprev==null){ntagprev=document.getElementById("ntag1")};ntagprev.className="";document.getElementById("ntag"+obj).className="tagA";ntagprev=document.getElementById("ntag"+obj)}