I was going through a tut on the internet about Cookies in JS. So, they told to use this function "getCookie" !
I used that ..... but I cannot understand the use of regular expressions ie using document.cookie.split !!
'cause as far as I know a cookie is just a small text file.
Is that a way of reading from the text file ?
<!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>
<title></title>
<script type="text/javascript">
function getCookie(c_name) {
var i;
var x;
var y;
var ARRcookies = document.cookie.split(";");
for (i = 0; i < ARRcookies.length; i++) {
x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));
y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);
x = x.replace(/^\s+|\s+$/g,"");
if (x == c_name) {
return unescape(y);
}
}
}
function setCookie(c_name, value, exdays) {
var exdate = new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());
document.cookie = c_name + "=" + c_value;
}
function checkCookie() {
var username = getCookie("username");
if (username != null && username != "") {
alert("Welcome again " + username);
}
else {
username = prompt("Please enter your name:", "");
if (username != null && username != "") {
setCookie("username", username, 1);
}
}
}
</script>
</head>
<body onload="checkCookie()">
</body>
</html>:-/
Please help !