function show(id) {
	document.getElementById(id).style.visibility = "visible"
}
function hide(id) {
	document.getElementById(id).style.visibility = "hidden"
}
function changeImage( obj ) {
  document.theImage.src=obj.img.src
  currentLink=obj.link
}
function go() {
   if (currentLink != undefined) {
  	 location.href=currentLink
  	 return false
   }
   return true
}
var currentLink = undefined