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Create, call and erase cookies with javascript

/ Published in: JavaScript
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  1. function createCookie(name,value,days) {
  2. 	if (days) {
  3. 		var date = new Date();
  4. 		date.setTime(date.getTime()+(days*24*60*60*1000));
  5. 		var expires = "; expires="+date.toGMTString();
  6. 	}
  7. 	else var expires = "";
  8. 	document.cookie = name+"="+value+expires+"; path=/";
  9. }
  10.  
  11. function readCookie(name) {
  12. 	var nameEQ = name + "=";
  13. 	var ca = document.cookie.split(';');
  14. 	for(var i=0;i < ca.length;i++) {
  15. 		var c = ca[i];
  16. 		while (c.charAt(0)==' ') c = c.substring(1,c.length);
  17. 		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  18. 	}
  19. 	return null;
  20. }
  21.  
  22. function eraseCookie(name) {
  23. 	createCookie(name,"",-1);
  24. }

URL: http://www.quirksmode.org/js/cookies.html

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