var previousTab = 'faq';

function swapTabs(tabId, tabSide) {
  var previousTabBody = document.getElementById(previousTab);
  var currentTabBody = document.getElementById(tabId);

  document.getElementById("faqTab").className = "subtab";
  document.getElementById("bodyprofileTab").className = "subtab";
  document.getElementById("glossaryTab").className = "subtab";
  if (tabId == "faq") {
    document.getElementById("faqTab").className = "subtab_on";
  }
  else if (tabId == "glossary") {
    document.getElementById("glossaryTab").className = "subtab_on";
  }
  else {
    document.getElementById("bodyprofileTab").className = "subtab_on";
  }
  previousTabBody.style.display = "none";
  currentTabBody.style.display = "block";
 
  previousTab = tabId;    
}