function showBook()
{
var pro = document.getElementById("promo")
var bookcon = document.getElementById("book")
var pack = document.getElementById("package")
var packTab=document.getElementById("pktab")
var proTab=document.getElementById("prtab")
var booktab=document.getElementById("bktab")
			packTab.style.background="url(images/inact.gif)"
booktab.style.background="url(images/act.gif)"
proTab.style.background="url(images/inact.gif)"
bookcon.style.visibility="visible"
pro.style.visibility="hidden"
pack.style.visibility="hidden"		
}
function showPackage()
{
var pro = document.getElementById("promo")
var bookcon = document.getElementById("book")
var pack = document.getElementById("package")
var packTab=document.getElementById("pktab")
var proTab=document.getElementById("prtab")
var booktab=document.getElementById("bktab")
packTab.style.background="url(images/act.gif)"
booktab.style.background="url(images/inact.gif)"
proTab.style.background="url(images/inact.gif)"
pro.style.visibility="visible"
pack.style.visibility="hidden"
bookcon.style.visibility="hidden"
}
function showPromo()
{
var pro = document.getElementById("promo")
var pack = document.getElementById("package")
var bookcon = document.getElementById("book")
var packTab=document.getElementById("pktab")
var proTab=document.getElementById("prtab")
var booktab=document.getElementById("bktab")
packTab.style.background="url(images/inact.gif)"
booktab.style.background="url(images/inact.gif)"
proTab.style.background="url(images/act.gif)"
pro.style.visibility="hidden"
pack.style.visibility="visible"
bookcon.style.visibility="hidden"
}