function switchdivs()
{
document.getElementById("pca").style.display="block";
document.getElementById("pr").style.display="none";
document.getElementById("sa").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivs1()
{
document.getElementById("pr").style.display="block";
document.getElementById("pca").style.display="none";
document.getElementById("sa").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivs2()
{
document.getElementById("sa").style.display="block";
document.getElementById("pca").style.display="none";
document.getElementById("pr").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivs3()
{
document.getElementById("sa").style.display="none";
document.getElementById("pca").style.display="none";
document.getElementById("pr").style.display="none";
document.getElementById("mymain").style.display="block";
}

function switchdivsos()
{
document.getElementById("vr").style.display="block";
document.getElementById("lro").style.display="none";
document.getElementById("ltr").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivsos1()
{
document.getElementById("lro").style.display="block";
document.getElementById("vr").style.display="none";
document.getElementById("ltr").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivsos2()
{
document.getElementById("ltr").style.display="block";
document.getElementById("lro").style.display="none";
document.getElementById("vr").style.display="none";
document.getElementById("mymain").style.display="none";
}

function switchdivsos3()
{
document.getElementById("ltr").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("vr").style.display="none";
document.getElementById("mymain").style.display="block";
}

function switchdivsvac()
{
document.getElementById("mymain").style.display="none";
document.getElementById("zero").style.display="block";
document.getElementById("one").style.display="block";
document.getElementById("two").style.display="block";
document.getElementById("three").style.display="block";
document.getElementById("sc").style.display="block";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="none";
}

function switchdivsvac1()
{
document.getElementById("mymain").style.display="none";
document.getElementById("zero").style.display="block";
document.getElementById("one").style.display="block";
document.getElementById("two").style.display="block";
document.getElementById("three").style.display="block";
document.getElementById("sc").style.display="none";
document.getElementById("new").style.display="block";
document.getElementById("new1").style.display="none";
}

function switchdivsvac2()
{
document.getElementById("mymain").style.display="none";
document.getElementById("zero").style.display="block";
document.getElementById("one").style.display="block";
document.getElementById("two").style.display="block";
document.getElementById("three").style.display="block";
document.getElementById("sc").style.display="none";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="block";
}

function switchdivsvacs1()
{
document.getElementById("unit2207").style.display="block";
document.getElementById("unit304").style.display="none";
document.getElementById("sc").style.display="none";
document.getElementById("mymain").style.display="none";
document.getElementById("zero0").style.display="block";
document.getElementById("zero1").style.display="block";
document.getElementById("one").style.display="none";
document.getElementById("two").style.display="none";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="none";
}

function switchdivsvacs2()
{
document.getElementById("unit304").style.display="block";
document.getElementById("unit2207").style.display="none";
document.getElementById("sc").style.display="none";
document.getElementById("mymain").style.display="none";
document.getElementById("zero0").style.display="block";
document.getElementById("zero1").style.display="block";
document.getElementById("one").style.display="none";
document.getElementById("two").style.display="none";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="none";
}

function switchdivsvaclt()
{
document.getElementById("sclt").style.display="block";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="none";
document.getElementById("mymainlt").style.display="none";
}

function switchdivsvac1lt()
{
document.getElementById("new").style.display="block";
document.getElementById("sclt").style.display="none";
document.getElementById("new1").style.display="none";
document.getElementById("mymainlt").style.display="none";
}

function switchdivsvac2lt()
{
document.getElementById("new1").style.display="block";
document.getElementById("sclt").style.display="none";
document.getElementById("new").style.display="none";
document.getElementById("mymainlt").style.display="none";
}

function switchdivsvac3lt()
{
document.getElementById("mymainlt").style.display="block";
document.getElementById("sclt").style.display="none";
document.getElementById("new").style.display="none";
document.getElementById("new1").style.display="none";
}

function switchdivsvac3()
{
document.getElementById("new1").style.display="none";
document.getElementById("sc").style.display="none";
document.getElementById("zero").style.display="block";
document.getElementById("new").style.display="none";
document.getElementById("one").style.display="block";
document.getElementById("two").style.display="block";
document.getElementById("mymain").style.display="block";
document.getElementById("unit2207").style.display="none";
document.getElementById("unit304").style.display="none";
}

function displaymessage()
{
alert("Hello World!");
}