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JavaScript Cookie Functions

/ Published in: JavaScript
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Simple functions to add, fetch or delete cookies in the browser via JavaScript.

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  1. function setCookie(c_name,c_value,c_expiredays,c_path,c_domain) {
  2. 	var c_exdate=new Date();
  3. 	c_exdate.setDate(c_exdate.getDate()+c_expiredays);
  4. 	document.cookie=c_name+ "=" +escape(c_value)+((c_expiredays==null) ? "" : ";expires="+c_exdate.toUTCString()) +"; path="+ c_path +"; domain="+ c_domain;
  5. }
  6.  
  7. function getCookie(tag) {
  8. 	var value = null
  9. 	var myCookie = document.cookie + ";"
  10. 	var findTag = tag + "="
  11. 	var endPos
  12. 	if (myCookie.length > 0) {
  13. 	var beginPos = myCookie.indexOf(findTag)
  14. 		if (beginPos != -1) {
  15. 			beginPos = beginPos + findTag.length
  16. 			endPos = myCookie.indexOf(";",beginPos)
  17. 		if (endPos == -1)
  18. 			endPos = myCookie.length
  19. 			value = unescape(myCookie.substring(beginPos,endPos))
  20. 		}
  21. 	}
  22. 	return value
  23. }
  24.  
  25. function deleteCookie(cookie) {
  26. 	var yesterday = 24 * 60 * 60 * 1000
  27. 	var expireDate = new Date()
  28. 	expireDate.setTime (expireDate.getTime() - yesterday)
  29. 	document.cookie =cookie + "=" + escape("nothing") + ";" + "expires" + "=" + expireDate.toGMTString()
  30. }

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