cookies.js
上传用户:snow1005
上传日期:2015-11-10
资源大小:3151k
文件大小:3k
- /*
- * SAMPLE CODE AT BOTTOM!!!
- *
- * You need to put the name and values in quotes when you call the function, like this:
- * set_cookie( 'mycookie', 'visited 9 times', 30, '/', '', '' );. Don't forget to put in empty quotes for the unused parameters or
- * you'll get an error when you run the code. This makes the cookie named 'mycookie', with the value of 'visited 9 times', and with
- * a life of 30 days, and the cookie is set to your root folder.
- *
- * The Set_Cookie values for 'domain' and 'secure' are not utilized. Use 'domain' on the Javascript cookie if you are using it on a
- * subdomain, like widgets.yoursite.com, where the cookie is set on the widgets subdomain, but you need it to be accessible over the
- * whole yoursite.com domain.
- *
- * It's good practice to not assume the path to the site root will be set the way you want it by default, so do this manually as a
- * rule, '/'. If no value is set for expires, it will only last as long as the current session of the visitor, and will be automatically
- * deleted when they close their browser.
- */
- function set_cookie(name, value, expires, path, domain, secure)
- {
- // set time, it's in milliseconds
- var today = new Date();
- today.setTime( today.getTime() );
- /*
- if the expires variable is set, make the correct
- expires time, the current script below will set
- it for x number of days, to make it for hours,
- delete * 24, for minutes, delete * 60 * 24
- */
- if ( expires )
- {
- expires = expires * 1000 * 60 * 60 * 24;
- }
- var expires_date = new Date( today.getTime() + (expires) );
-
- document.cookie = name + "=" +escape( value ) +
- ( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) +
- ( ( path ) ? ";path=" + path : "" ) +
- ( ( domain ) ? ";domain=" + domain : "" ) +
- ( ( secure ) ? ";secure" : "" );
- }
- /*
- * This will retrieve the cookie by name, if the cookie does not exist, it will return false, so you can do things like
- * if ( Get_Cookie( 'your_cookie' ) ) do something.
- */
- function get_cookie(name) {
- var start = document.cookie.indexOf(name + "=");
- var len = start + name.length + 1;
- if ((!start) && (name != document.cookie.substring(0, name.length )))
- {
- return null;
- }
- if (start == -1) return null;
- var end = document.cookie.indexOf(";", len);
- if (end == -1) end = document.cookie.length;
- return unescape(document.cookie.substring(len, end));
- }
- /*
- * Here all you need to do is put in: Delete_Cookie('cookie name', '/', '') and the cookie will be deleted. Remember to match
- * the cookie name, path, and domain to what you have it in Set_Cookie exactly, or you may get some very hard to diagnose errors.
- */
- // this deletes the cookie when called
- function Delete_Cookie(name, path, domain) {
- if(Get_Cookie(name)) document.cookie = name + "=" + ((path) ? ";path=" + path : "") + ((domain) ? ";domain=" + domain : "" ) + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
- }
- /*
- * SAMPLE CODE
- *
- * <script type="text/javascript">
- * // remember, these are the possible parameters for Set_Cookie:
- * // name, value, expires, path, domain, secure
- * Set_Cookie( 'test', 'it works', '', '/', '', '' );
- * if ( Get_Cookie( 'test' ) ) alert( Get_Cookie('test'));
- * // and these are the parameters for Delete_Cookie:
- * // name, path, domain
- * // make sure you use the same parameters in Set and Delete Cookie.
- * Delete_Cookie('test', '/', '');
- * ( Get_Cookie( 'test' ) ) ? alert( Get_Cookie('test')) :
- * alert( 'it is gone');
- * </script>
- */