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var NUMBER_OF_REPETITIONS = 40;
var nRepetitions = 0;
var g_oTimer = null;
function startLongProcess()
{
divProgressDialog.style.display = "";
resizeModal();
btnCancel.focus();
// Add a resize handler for the window
window.onresize = resizeModal;
// Add a warning in case anyone tries to navigate away or refresh the page
window.onbeforeunload = showWarning;
//
// Here's where you would normally kick off a long asynchronous process
// like a file download or a remote database operation. Here, we use
// our "long process" to simulate this process.
//
continueLongProcess();
}
function updateProgress(nNewPercent)
{
// Update our pseudo progress bar
divProgressInner.style.width = (parseInt(divProgressOuter.style.width)
* nNewPercent / 100)+ "px";
}
function stopLongProcess()
{
if (g_oTimer != null)
{
// Clear the timer so we don't get called back an extra time
window.clearTimeout(g_oTimer);
g_oTimer = null;
}
// Hide the fake modal DIV
divModal.style.width = "0px";
divModal.style.height = "0px";
divProgressDialog.style.display = "none";
// Remove our event handlers
window.onresize = null;
window.onbeforeunload = null;
nRepetitions = 0;
}
function continueLongProcess()
{
if (nRepetitions < NUMBER_OF_REPETITIONS)
{
// Set the timeout somewhere between 0 and .25 seconds
var nTimeoutLength = Math.random() * 250;
updateProgress(100 * nRepetitions / NUMBER_OF_REPETITIONS);
g_oTimer = window.setTimeout("continueLongProcess();", nTimeoutLength);
nRepetitions++;
}
else
{
stopLongProcess();
}
}
function showWarning()
{
//Warn users before they refresh the page or navigate away
return "Navigating to a different page or refreshing the window could cause you to lose precious data.\n\nAre you*absolutely* certain you want to do this?";
}
function resizeModal()
{
// Resize the DIV which fakes the modality of the dialog DIV
divModal.style.width = document.body.scrollWidth;
divModal.style.height = document.body.scrollHeight;
// Re-center the dialog DIV
divProgressDialog.style.left = ((document.body.offsetWidth -
divProgressDialog.offsetWidth) / 2);
divProgressDialog.style.top = ((document.body.offsetHeight -
divProgressDialog.offsetHeight) / 2);
}
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ID="btnCancel" οnclick="stopLongProcess();" VALUE="Cancel">
absolute; TOP: 0px; Z-INDEX: 3"
οnclick="window.event.cancelBubble=true; window.event.returnValue=false;">
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