عداد وقت يبدأ بالعد التنازلي

 <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

		 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

		 <html xmlns="http://www.w3.org/1999/xhtml" >
		 <head runat="server">
			 <title>Untitled Page</title>
			 <style style="text/css">

		 .lcdstyle{ /*Example CSS to create LCD countdown look*/
		 background-color:black;
		 color:yellow;
		 font: bold 18px MS Sans Serif;
		 padding: 3px;
		 }

		 .lcdstyle sup{ /*Example CSS to create LCD countdown look*/
		 font-size: 80%
		 }

		 </style>
			 <script type="text/javascript">
			  function cdtime(container, targetdate){
				 if (!document.getElementById || !document.getElementById(container)) return
				 this.container=document.getElementById(container)
				 this.currentTime=new Date()
				 this.targetdate=new Date(targetdate)
				 this.timesup=false
				 this.updateTime()
				 }

				 cdtime.prototype.updateTime=function(){
				 var thisobj=this
				 this.currentTime.setSeconds(this.currentTime.getSeconds()+1)
				 setTimeout(function(){thisobj.updateTime()}, 1000) //update time every second
				 }

				 cdtime.prototype.displaycountdown=function(baseunit, functionref){
				 this.baseunit=baseunit
				 this.formatresults=functionref
				 this.showresults()
				 }

				 cdtime.prototype.showresults=function(){
				 var thisobj=this


				 var timediff=(this.targetdate-this.currentTime)/1000 //difference btw target date and current date, in seconds
				 if (timediff<0){ //if time is up
				 this.timesup=true
				 this.container.innerHTML=this.formatresults()
				 return
				 }
				 var oneMinute=60 //minute unit in seconds
				 var oneHour=60*60 //hour unit in seconds
				 var oneDay=60*60*24 //day unit in seconds
				 var dayfield=Math.floor(timediff/oneDay)
				 var hourfield=Math.floor((timediff-dayfield*oneDay)/oneHour)
				 var minutefield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour)/oneMinute)
				 var secondfield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour-minutefield*oneMinute))
				 if (this.baseunit=="hours"){ //if base unit is hours, set "hourfield" to be topmost level
				 hourfield=dayfield*24+hourfield
				 dayfield="n/a"
				 }
				 else if (this.baseunit=="minutes"){ //if base unit is minutes, set "minutefield" to be topmost level
				 minutefield=dayfield*24*60+hourfield*60+minutefield
				 dayfield=hourfield="n/a"
				 }
				 else if (this.baseunit=="seconds"){ //if base unit is seconds, set "secondfield" to be topmost level
				 var secondfield=timediff
				 dayfield=hourfield=minutefield="n/a"
				 }
				 this.container.innerHTML=this.formatresults(dayfield, hourfield, minutefield, secondfield)
				 setTimeout(function(){thisobj.showresults()}, 1000) //update results every second
				 }

				 /////CUSTOM FORMAT OUTPUT FUNCTIONS BELOW//////////////////////////////

				 //Create your own custom format function to pass into cdtime.displaycountdown()
				 //Use arguments[0] to access "Days" left
				 //Use arguments[1] to access "Hours" left
				 //Use arguments[2] to access "Minutes" left
				 //Use arguments[3] to access "Seconds" left

				 //The values of these arguments may change depending on the "baseunit" parameter of cdtime.displaycountdown()
				 //For example, if "baseunit" is set to "hours", arguments[0] becomes meaningless and contains "n/a"
				 //For example, if "baseunit" is set to "minutes", arguments[0] and arguments[1] become meaningless etc


				 function formatresults(){
				 if (this.timesup==false){//if target date/time not yet met
				 var displaystring=arguments[0]+" days "+arguments[1]+" hours "+arguments[2]+" minutes "+arguments[3]+" seconds left until March 23, 2009 18:25:00"
				 }
				 else{ //else if target date/time met
				 var displaystring="Future date is here!"
				 }
				 return displaystring
				 }

				 function formatresults2(){
				 if (this.timesup==false){ //if target date/time not yet met
				 var displaystring="<span class='lcdstyle'>"+arguments[0]+" <sup>days</sup> "+arguments[1]+" <sup>hours</sup> "+arguments[2]+" <sup>minutes</sup> "+arguments[3]+" <sup>seconds</sup></span> left until this Christmas"
				 }
				 else{ //else if target date/time met
				 var displaystring="" //Don't display any text
				 alert("Christmas is here!") //Instead, perform a custom alert
				 }
				 return displaystring
				 }
			 </script>
		 </head>
		 <body>
			 <form id="form1" runat="server">
			 <div>
			 <div id="countdowncontainer"></div>


		 <div id="countdowncontainer2"></div>

				 <script type="text/javascript">

				 var futuredate=new cdtime("countdowncontainer", "March 23, 2009 18:25:00")
				 futuredate.displaycountdown("days", formatresults)

				 var currentyear=new Date().getFullYear()
				 //dynamically get this Christmas' year value. If Christmas already passed, then year=current year+1
				 var thischristmasyear=(new Date().getMonth()>=11 && new Date().getDate()>25)? currentyear+1 : currentyear
				 var christmas=new cdtime("countdowncontainer2", "December 25, "+thischristmasyear+" 0:0:00")
				 christmas.displaycountdown("days", formatresults2)

				 </script>
			 </div>
			 </form>
		 </body>
		 </html>

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