function toggleTabs(menu,tab,sectionClass){
  var tabs = document.getElementById(menu).getElementsByTagName("li");
  var links = document.getElementById(menu).getElementsByTagName("a");

  for (var x = 0; x < links.length; x++) {
    links.item(x).blur();
  }

  for (var i = 0; i < tabs.length; i++) {
    var count = i + 1;
    var id = tabs.item(i).id;
    
    if (tab==id){
      tabs.item(i).className = eval('"tab-'+sectionClass+' on-'+sectionClass+'"');
      eval('document.getElementById("'+menu+count+'content").className = "visible"');
    } else {
      tabs.item(i).className = eval('"tab-'+sectionClass+' off-'+sectionClass+'"');
      eval('document.getElementById("'+menu+count+'content").className = "hidden"');
    }
  }
}