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countDown Class in Javascript

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A simple countDown class in Javascript:

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  1. /**
  2.  * CountDown Class
  3.  *
  4.  * @author		Giovambattista Fazioli
  5.  * @email		 [email protected]
  6.  * @web		   http://www.undolog.com
  7.  *
  8.  * @param	dd   (string) 'month day, year'
  9.  *
  10.  */
  11. function countDown( dd ) {
  12. 	// init target time
  13. 	var target			= new Date( dd );
  14. 	this.targetTime		= target.getTime();
  15. 	/**
  16. 	 * refresh countdown
  17. 	 */
  18. 	this.refresh = function() {
  19. 		var today				 = new Date();
  20. 		var currentTime		   = today.getTime();
  21. 		// time left
  22. 		this._leftMilliseconds	= (this.targetTime - currentTime);
  23. 		this._leftSeconds		 = Math.floor( this._leftMilliseconds / 1000 );
  24. 		this._leftMinutes		 = Math.floor( this._leftSeconds / 60 );
  25. 		this._leftHours		   = Math.floor( this._leftMinutes / 60 );
  26. 		// no module
  27. 		this.leftDays			 = Math.floor( this._leftHours / 24 );
  28. 		// for print
  29. 		this.leftMilliseconds	 = this._leftMilliseconds % 1000;
  30. 		this.leftSeconds		  = this._leftSeconds % 60;
  31. 		this.leftMinutes		  = this._leftMinutes % 60;
  32. 		this.leftHours			= this._leftHours % 24;
  33. 	}
  34. 	this.refresh();
  35. }

URL: http://www.undolog.com/2008/10/13/una-classe-countdown-in-javascript/

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