JavaScript Examples Bible - UserWorks Technologies

Chapter 2 ✦ Window and Frame Objects (Chapter 16)
hidden with the popup global variable returned to its original, null value. But if the
value is other than zero, then the inner text of the SPAN is set to the decremented
value (with a leading zero), and the setTimeout() method is called upon to reinvoke
the countDown() function in one second (1000 milliseconds).
Listing 16-49: Hiding and Showing a Pop-up
popup Object
var popup
function initContent() {
if (popup && !popup.isOpen) {
var popBody = popup.document.body
popBody.style.border = “solid 3px red”
popBody.style.padding = “10px”
popBody.style.fontSize = “24pt”
popBody.style.textAlign = “center”
var bodyText = “This popup will self-destruct in “
bodyText += “05”
bodyText += “ seconds...”
popBody.innerHTML = bodyText
}
}
function countDown() {
if (popup && popup.isOpen) {
var currCount = parseInt(popup.document.all.counter.innerText, 10)
if (--currCount == 0) {
popup.hide()
popup = null
} else {
popup.document.all.counter.innerText = “0” + currCount
setTimeout(“countDown()”, 1000)
}
}
}
function selfTimer() {
popup = window.createPopup()
initContent()
popup.show(200,200,400,100,document.body)
setTimeout(“countDown()”, 1000)
}
203
popupObject.hide()