js操作cookie
/**
* 设置Cookie
*
* @param {} name
* @param {} value
*/
function setCookie(name, value) {
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
if (expires != null) {
var LargeExpDate = new Date();
LargeExpDate.setTime(LargeExpDate.getTime()
+ (expires * 1000 * 3600 * 24));
}
document.cookie = name
+ "="
+ escape(value)
+ ((expires == null) ? "" : ("; expires=" + LargeExpDate
.toGMTString()));
}
/**
* 获取Cookie
*
* @param {} Name
* @return {}
*/
function getCookie(Name) {
var search = Name + "="
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) {
offset += search.length
end = document.cookie.indexOf(";", offset)
if (end == -1)
end = document.cookie.length
return unescape(document.cookie.substring(offset, end))
} else
return ""
}
}
/**
* 从缓存中清除Cookie
*
* @param {} name
*/
function clearCookie(name) {
var expdate = new Date();
expdate.setTime(expdate.getTime() - (86400 * 1000 * 1));
setCookie(name, "", expdate);
}