// Layer Switch Script - By: Richard Wilson, www.richardwilson.ws
var browser = "";
if (navigator.userAgent.indexOf("Opera")!=-1 && document.getElementById) {browser = "OP";}
else if (document.all) {browser = "IE";}
else if (document.layers) {browser = "NN";}
else if (!document.all && document.getElementById) {browser = "MO";}
else {browser = "IE";}
function showHideLayer(id1, action1, action2, id2, action3, action4){
  if (browser=="IE") {
  eval("document.all." + id1 + ".style.visibility='" + action1 + "'");
  eval("document.all." + id1 + ".style.display='" + action2 + "'");
  eval("document.all." + id2 + ".style.visibility='" + action3 + "'");
  eval("document.all." + id2 + ".style.display='" + action4 + "'");
  }
  if (browser=="NN") {
  eval("document." + id1 + ".visibility='" + action1 + "'");
  eval("document." + id1 + ".display='" + action2 + "'");
  eval("document." + id2 + ".visibility='" + action3 + "'");
  eval("document." + id2 + ".display='" + action4 + "'");
  }
  if (browser=="MO" || browser=="OP") {
  eval("document.getElementById('" + id1 + "').style.visibility='" + action1 + "'");
  eval("document.getElementById('" + id1 + "').style.display='" + action2 + "'");
  eval("document.getElementById('" + id2 + "').style.visibility='" + action3 + "'");
  eval("document.getElementById('" + id2 + "').style.display='" + action4 + "'");
  }
}