var elementsLoaded = "no";

function show(currElem) {
  if (elementsLoaded == "yes") {
    stdBrowser = (document.getElementById) ? true : false;
    if (currElem) {
      popUpWin = (stdBrowser) ? document.getElementById(currElem).style : eval("document." + currElem);
      popUpWin.visibility = "visible";
    }
  }
}

function hide(currElem) {
  if (elementsLoaded == "yes") {
    stdBrowser = (document.getElementById) ? true : false;
    if (currElem) {
      popUpWin = (stdBrowser) ? document.getElementById(currElem).style : eval("document." + currElem);
      popUpWin.visibility = "hidden";
    }
  }
}