var baseText = null;
 
function showPopup(w,h){
   var popUp = document.getElementById("popup");
 
   popUp.style.bottom = "0px";
   popUp.style.right = "0px";
   popUp.style.width = w + "px";
 
   if (baseText == null) baseText = popUp.innerHTML;
   popUp.style.visibility = "visible";
}
function hidePopup(){
   var popup = document.getElementById("popup");
   popup.style.visibility = "hidden";
}