Lecture Notes 05 Oct 2016
# Java Script Code to show and hide elements
Visibility Control
function flipImage ()
{
elt = document.getElementById("galaxy").style;
if (elt.visibility == "visible")
elt.visibility = "hidden";
else
elt.visibility = "visible";
}
# Java Script code to stack elements to change visibility
Dynamic stacking of images
var oldTop = "lake";
function toTop(newTop)
{
domTop = document.getElementById(oldTop).style;
domNew = document.getElementById(newTop).style;
domTop.zIndex = "0";
domNew.zIndex = "40";
oldTop = newTop;
}