var ie45,ns6,ns4,dom;

  if (navigator.appName=="Microsoft Internet Explorer")
    ie45=parseInt(navigator.appVersion)>=4;
  else if (navigator.appName=="Netscape"){
    ns6=parseInt(navigator.appVersion)>=5;
    ns4=parseInt(navigator.appVersion)<5;}
  dom=ie45 || ns6;

  // **********************************
  function showhide(id) {
  el = document.all ? document.all[id] :
    dom ? document.getElementById(id) :
    document.layers[id];
  els = dom ? el.style : el;
  if (dom){
    if (els.display == "none")
      els.display = "";
    else els.display = "none";
    }
  else if (ns4){
    if (els.display == "")
      els.display = "none";
    else els.display = "";
    }
  }
  // **********************************
  function showAll(idFrom, idTo) {
    for (var count = 1; count <= idTo; count++)
    {
			el = document.all ? document.all[idFrom + count] :
        dom ? document.getElementById(idFrom + count) :
        document.layers[idFrom + count];
      els = dom ? el.style : el;
      if (dom){
          els.display = "";
        }
      else if (ns4){
          els.display = "none";
        }
    }
	}
  // **********************************
  function hideAll(idFrom, idTo) {
    for (var count = 1; count <= idTo; count++)
    {
			el = document.all ? document.all[idFrom + count] :
        dom ? document.getElementById(idFrom + count) :
        document.layers[idFrom + count];
      els = dom ? el.style : el;
      if (dom){
          els.display = "none";
        }
      else if (ns4){
          els.display = "";
        }
    }
	}
  // **********************************
  function hide(id) {
			el = document.all ? document.all[id] :
        dom ? document.getElementById(id) :
        document.layers[id];
      els = dom ? el.style : el;
      if (dom){
          els.display = "none";
        }
      else if (ns4){
          els.display = "";
        }
	}
  // **********************************
  function show(id) {
			el = document.all ? document.all[id] :
        dom ? document.getElementById(id) :
        document.layers[id];
      els = dom ? el.style : el;
      if (dom){
          els.display = "";
        }
      else if (ns4){
          els.display = "none";
        }
	}