// JavaScript Document
function div1()
{
document.getElementById("div1").style.display="block";
document.getElementById("div2").style.display="none";
document.getElementById("div3").style.display="none";
}


function div2()
{
document.getElementById("div1").style.display="none";
document.getElementById("div2").style.display="block";
document.getElementById("div3").style.display="none";
}


function div3()
{
document.getElementById("div1").style.display="none";
document.getElementById("div2").style.display="none";
document.getElementById("div3").style.display="block";
}