function showmenu(elmnt)
{document.getElementById(elmnt).style.visibility="visible";}
function hidemenu(elmnt)
{document.getElementById(elmnt).style.visibility="hidden";}

function checkVersion(age)
{
   var browser    = navigator.appName;
   var versionNo = navigator.appVersion;
   var version     = parseFloat(versionNo);

   if (browser=="Netscape" && version < age)  location.href = "http://www.lunacystageworks.org/legacyindex.html";
}

var pictures = ["images/sightunseen1.jpg", 
"images/sightunseen2.jpg", "images/sightunseen3.jpg", 
"images/sightunseen4.jpg", "images/sightunseen5.jpg", 
"images/sightunseen6.jpg", "images/sightunseen7.jpg", 
"images/sightunseen8.jpg", "images/sightunseen9.jpg", 
"images/sightunseen10.jpg", "images/sightunseen11.jpg", 
"images/sightunseen12.jpg", "images/sightunseen13.jpg", 
"images/sightunseen14.jpg", "images/sightunseen15.jpg", 
"images/sightunseen16.jpg", ];

function pickPicture(idName, pic)
{
   var which = Math.floor(Math.random()*pic.length);
   var imgTag = document.getElementById(idName);
   imgTag.src = pictures[which];
}