<html>
<head>
<title>Timer Test</title>
<script type="text/javascript" src="AdvancedCountDown.js"></script>
<script type="text/javascript">
window.onload=WindowLoad;
function WindowLoad(event) {
ActivateCountDown("CountDownPanel", 700000, "CountDownEnded");
}
function CountDownEnded()
{
alert("the time has expired!");
}
</script>
<style type="text/css">
.CountDownPanel {color: blue; background-color: yellow; font-size: 18px;}
</style>
</head>
<body>
<p>
Time remaining: <span class="CountDownPanel" id="CountDownPanel" time_format="%h:%m:%s"></span>
</p>
</body>
</html>
/*
AdvancedCountDown.js
Written By: Yahav Braverman, 2008
ANY CHANGE IN THE CODE BELOW MIGHT CAUSE UNEXPECTED PROBLEMS.
PLEASE USE THE SAMPLE CODE THAT COME WITH THIS FILE.
*/
var _arrCountDownContainers = new Array();
var _arrCountDownSeconds = new Array();
var _arrCountDownCallbacks = new Array();
var _countDownTimer = 0;
function _cdt_CountDownTick()
{
var activeCount = 0;
for (var key in _arrCountDownSeconds)
{
var curSeconds = _arrCountDownSeconds[key];
if (curSeconds < 0)
continue;
if (curSeconds == 0)
{
_cdt_TimeOver(key);
continue;
}
_cdt_ApplyCountdownText(key);
activeCount++;
}
if (activeCount > 0)
_countDownTimer = window.setTimeout("_cdt_CountDownTick()", 100);
}
function _cdt_TimeOver(key)
{
_arrCountDownSeconds[key] = -1;
var strCallback = _arrCountDownCallbacks[key];
if (strCallback && strCallback.length > 0)
{
eval(strCallback + "();");
}
}
function ActivateCountDown(strContainerID, initialValue, strCallback)
{
if (typeof initialValue == "undefined")
{
if (_arrCountDownSeconds[strContainerID] && _arrCountDownSeconds[strContainerID] < 0)
{
_arrCountDownSeconds[strContainerID] = _arrCountDownSeconds[strContainerID] * -1;
_arrCountDownContainers[strContainerID].setAttribute("initial_timer_value", _arrCountDownSeconds[strContainerID] + "");
_arrCountDownContainers[strContainerID].setAttribute("activation_time", _cdt_GetCurrentTime() + "");
RestartCountdownTimer(1);
}
return;
}
var objContainer = document.getElementById(strContainerID);
if (!objContainer)
{
alert("count down error: container does not exist: " + strContainerID + "\nmake sure html element with this ID exists");
return;
}
objContainer.setAttribute("activation_time", _cdt_GetCurrentTime() + "");
objContainer.setAttribute("initial_timer_value", initialValue + "");
_arrCountDownContainers[strContainerID] = objContainer;
_arrCountDownCallbacks[strContainerID] = strCallback;
_cdt_ApplyCountdownText(strContainerID);
RestartCountdownTimer(1000);
}
function RestartCountdownTimer(value)
{
if (_countDownTimer)
window.clearTimeout(_countDownTimer);
_countDownTimer = window.setTimeout("_cdt_CountDownTick()", value);
}
function DeactivateCountDown(strContainerID)
{
if (_arrCountDownSeconds[strContainerID] && _arrCountDownSeconds[strContainerID] > 0)
{
_arrCountDownSeconds[strContainerID] = _arrCountDownSeconds[strContainerID] * -1;
}
}
function DeactivateAllCountdowns()
{
for (var key in _arrCountDownSeconds)
{
DeactivateCountDown(key);
}
}
function ActivateAllCountdowns()
{
for (var key in _arrCountDownSeconds)
{
ActivateCountDown(key);
}
}
function SetInitialTime(strContainerID, initialValue)
{
var nValue = parseInt(initialValue);
if (isNaN(nValue))
{
alert("invalid number: " + initialValue);
return;
}
if (nValue < 0)
nValue = 0;
var objContainer = _arrCountDownContainers[strContainerID];
if (objContainer)
{
objContainer.setAttribute("activation_time", _cdt_GetCurrentTime() + "");
objContainer.setAttribute("initial_timer_value", nValue + "");
}
}
function GetCurrentTime(strContainerID)
{
var objContainer = _arrCountDownContainers[strContainerID];
if (objContainer)
{
return _cdt_GetRealSeconds(objContainer);
}
return 0;
}
function _cdt_ApplyCountdownText(strContainerID)
{
//get container:
var objContainer = _arrCountDownContainers[strContainerID];
//get format:
var strFormat = objContainer.getAttribute("time_format");
var blnCustomFormat = true;
if (!strFormat || strFormat.length == 0)
{
strFormat = "%h:%m:%s";
blnCustomFormat = false;
}
//get real seconds
var seconds = _cdt_GetRealSeconds(objContainer);
//store:
_arrCountDownSeconds[strContainerID] = seconds;
//build text:
var strText = "";
//time over?
var strFinishTime = objContainer.getAttribute("finish_value");
if (strFinishTime && strFinishTime.length > 0)
{
var nFinishTime = parseFloat(strFinishTime);
if (!isNaN(nFinishTime) && seconds < nFinishTime)
{
_cdt_TimeOver(strContainerID);
return;
}
}
//raw?
if (strFormat == "RAW")
{
strText = parseFloat(seconds.toFixed(2));
}
else
{
//get minutes:
var minutes = parseInt(seconds / 60);
//shrink:
seconds = (seconds % 60);
//get hours:
var hours = parseInt(minutes / 60);
//shrink:
minutes = (minutes % 60);
//get days:
var days = parseInt(hours / 24);
//shrink:
//use this if we want to show the days
//hours = (hours % 24);
//need to add zero?
/*
if (!blnCustomFormat)
{
hours = AddZero(hours);
minutes = AddZero(minutes);
seconds = AddZero(seconds);
}
*/
hours = AddZero(hours);
minutes = AddZero(minutes);
seconds = AddZero(seconds);
//strText = strFormat.replace("%d", days + "").replace("%h", hours + "").replace("%m", minutes + "").replace("%s", seconds + "");
strText = strFormat.replace("%h", hours + "").replace("%m", minutes + "").replace("%s", seconds + "");
}
//apply:
objContainer.innerHTML = strText;
}
function AddZero(num)
{
return ((num >= 0)&&(num < 10))?"0"+num:num+"";
}
function _cdt_GetCurrentTime()
{
var objDate = new Date();
return objDate.getTime();
}
function _cdt_GetRealSeconds(objContainer)
{
var nCurrentTime = _cdt_GetCurrentTime();
var nActivationTime = parseInt(objContainer.getAttribute("activation_time"));
var nInitialValue = parseFloat(objContainer.getAttribute("initial_timer_value"));
var nMiliSecondsDiff = (nCurrentTime - nActivationTime);
var nTotalDifference = parseInt(nMiliSecondsDiff / 1000);
var strSecondValue = objContainer.getAttribute("second_value");
if (strSecondValue && strSecondValue.length > 0)
{
var nSecondValue = parseFloat(strSecondValue);
if (!isNaN(nSecondValue))
nTotalDifference = parseFloat(nTotalDifference) * nSecondValue;
}
return (nInitialValue - nTotalDifference);
}
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