function ResetTabs(tabPrefix) {
  for(i = 1; i <= tabCount; i++) {
    var aDiv = document.getElementById(tabPrefix + "div_" + i);
    var aTab = document.getElementById(tabPrefix + "" + i);
    if(aDiv != null) aDiv.style.display = "none";
    if(aTab != null) aTab.className = "";
  }
}

function ShowTab(tabPrefix, tab) {
  var activeDiv = document.getElementById(tabPrefix + "div_" + tab);
  var activeTab = document.getElementById(tabPrefix + "" + tab)
  ResetTabs(tabPrefix);
  if(activeDiv != null) activeDiv.style.display = "";
  if(activeTab != null) activeTab.className = "selected";
}