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86 lines
2.5 KiB
86 lines
2.5 KiB
9 years ago
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/*
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Author: Robert Hashemian
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http://www.hashemian.com/
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You can use this code in any manner so long as the author's
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name, Web address and this disclaimer is kept intact.
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********************************************************
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Usage Sample:
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<script language="JavaScript">
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TargetDate = "12/31/2020 5:00 AM";
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BackColor = "palegreen";
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ForeColor = "navy";
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CountActive = true;
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CountStepper = -1;
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LeadingZero = true;
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DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
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FinishMessage = "It is finally here!";
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</script>
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<script language="JavaScript" src="http://scripts.hashemian.com/js/countdown.js"></script>
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*/
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function calcage(secs, num1, num2) {
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s = ((Math.floor(secs/num1))%num2).toString();
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if (LeadingZero && s.length < 2)
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s = "0" + s;
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return "<b>" + s + "</b>";
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}
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function CountBack(secs) {
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if (secs < 0) {
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document.getElementById("cntdwn").innerHTML = FinishMessage;
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return;
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}
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DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000));
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DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24));
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DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60));
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DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60));
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document.getElementById("cntdwn").innerHTML = DisplayStr;
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if (CountActive)
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setTimeout("CountBack(" + (secs+CountStepper) + ")", SetTimeOutPeriod);
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}
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function putspan(backcolor, forecolor) {
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document.write("<span id='cntdwn' style='background-color:" + backcolor +
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"; color:" + forecolor + "'></span>");
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}
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if (typeof(BackColor)=="undefined")
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BackColor = "white";
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if (typeof(ForeColor)=="undefined")
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ForeColor= "black";
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if (typeof(TargetDate)=="undefined")
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TargetDate = "12/31/2020 5:00 AM";
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if (typeof(DisplayFormat)=="undefined")
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DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
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if (typeof(CountActive)=="undefined")
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CountActive = true;
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if (typeof(FinishMessage)=="undefined")
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FinishMessage = "";
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if (typeof(CountStepper)!="number")
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CountStepper = -1;
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if (typeof(LeadingZero)=="undefined")
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LeadingZero = true;
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CountStepper = Math.ceil(CountStepper);
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if (CountStepper == 0)
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CountActive = false;
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var SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 990;
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putspan(BackColor, ForeColor);
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var dthen = new Date(TargetDate);
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var dnow = new Date();
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var d = new Date()
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var gmtHours = -d.getTimezoneOffset()/60;
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if(CountStepper>0)
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ddiff = new Date(dnow-dthen);
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else
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ddiff = new Date(dthen-dnow);
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gsecs = Math.floor(ddiff.valueOf()/1000);
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CountBack(gsecs+(gmtHours*60*60)-(7*60*60));
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