// JavaScript Document
ns4 = (document.layers) ? true:false //required for Functions to work 
ie4 = (document.all) ? true:false //required for Functions to work 
ng5 = (document.getElementById) ? true:false //required for Functions to work 

function hidetable() { 
if (ng5) document.getElementById('table1').style.visibility = "hidden" 
else if (ns4) document.table1.visibility = "hide" 
else if (ie4) table1.style.visibility ="hidden" 

if (ng5) document.getElementById('table2').style.visibility = "hidden" 
else if (ns4) document.table2.visibility = "hide" 
else if (ie4) table2.style.visibility ="hidden" 

if (ng5) document.getElementById('table3').style.visibility = "hidden" 
else if (ns4) document.table3.visibility = "hide" 
else if (ie4) table3.style.visibility ="hidden" 

if (ng5) document.getElementById('table4').style.visibility = "hidden" 
else if (ns4) document.table3.visibility = "hide" 
else if (ie4) table3.style.visibility ="hidden"

} 

function showtable(n) { 
hidetable(); 
if (ng5) document.getElementById('table' + n).style.visibility = "visible"; 
else if (ns4) document.layers["table" + n].visibility = "show"; 
else if (ie4) document.all["table" + n].style.visibility = "visible"; 
}