function gettab(){return document.getElementById("tabdiv").style.display}function getwall(){return document.getElementById("walldiv").style.display}function switchtab(){if(gettab()=="none"){document.getElementById("tabdiv").style.display="block";document.getElementById("walldiv").style.display="none"}else document.getElementById("tabdiv").style.display="block"} function switchwall(){if(getwall()=="none"){document.getElementById("walldiv").style.display="block";document.getElementById("tabdiv").style.display="none"}else document.getElementById("walldiv").style.display="none"};