rewrite cookies.js and free the code

homepage/js/cookies.js

@@ -1,49 +1,38 @@
-/* cookies.js; Deven Blake 2021; Public Domain to extent allowed, see below */
+/* cookies.js; Deven Blake 2021; Public Domain */
 
 window.setCookie = function(name, value){
 	var d;
 	d = new Date();
+
 	/*                      seconds, minutes, hours, days, years */
 	d.setTime(d.getTime() + 1000     * 60     * 60   * 24  * 365);
 	/*                      ( == one year in milliseconds)       */
+
 	document.cookie = name + "=" + value + ";" + d.toUTCString() + ";path=/";
 }
 
-/* Public domain rewrite */
-/*
 window.getCookie = function(name){
 	var c;
 	var i;
+
 	try{
 		c = decodeURIComponent(document.cookie);
 	}catch(URIError){
 		console.log("Could not decode cookie URIComponent (cookies.js: getCookie: URIError)");
 		return '';
 	}
+
 	c = c.split(';');
+
 	for(i = 0; i < c.length; ++i){
 		while(c[i].charAt(0) == ' ')
 			c[i] = c[i].slice(1);
+
+		/* check if the first bit + '=' matches name + '=' */
+		/* the added '=' is so 'a' doesn't match 'ab=' */
 		if(c[i].slice(0, name.length + 1) == name + '=')
-			return c[i].substring(name.length, c[i].length);
+			/* return the associated value */
+			return c[i].slice(name.length + 1, c[i].length);
 	}
 	return '';
 }
-*/
-
-/*
-	this code snippet copied from
-	https://www.w3schools.com/js/js_cookies.asp
-	used under fair use; for copyright see https://www.w3schools.com/about/about_copyright.asp
-*/
-window.getCookie = function(cname) {
-	var name = cname + "=";
-	var decodedCookie = decodeURIComponent(document.cookie);
-	var ca = decodedCookie.split(';');
-	for(var i = 0; i <ca.length; i++) {
-		var c = ca[i];
-		while(c.charAt(0) == ' ') c = c.substring(1);
-		if(c.indexOf(name) == 0) return c.substring(name.length, c.length);
-	}
-	return "";
-};