// JavaScript Document


function switch1(div)
{
if (document.getElementById('one'))
{
var option=['one','two','three','four','five','six','seven','eight','nine','ten','eleven','twelve','thirteen','fourteen','fifteen','sixteen','seventeen','eighteen','nineteen','twenty'];
for(var i=0; i<option.length; i++) 
{ obj=document.getElementById(option[i]);
obj.style.display=(option[i]==div)? "block" : "none"; }
}
}
//
function switch2()
{
var option=['tel1','tel2','tel3'];
for(var i=0; i<option.length; i++) 
{ obj=document.getElementById(option[i]);
obj.className=(obj.className=="visible")? "hidden" : "visible"; }
}
window.onload=function(){switch1('one');}