js操作cookie

<strong><span style="font-size: 12px;">$(window).load(function() { username = getCookie('username'); if (username != null && username != "") { $(':text')[0].value = username; } }) $(window).unload( function() { username = $(":text").val(); if (event.clientX > document.body.clientWidth && event.clientY < 0 || event.altKey) { if (confirm('是否保存填写记录')) { if (username != null && username != "") { setCookie('username', username, 365); } } else { setCookie('username', '', 365); } } }) function getCookie(c_name) { if (document.cookie.length > 0) { c_start = document.cookie.indexOf(c_name + "="); if (c_start != -1) { c_start = c_start + c_name.length + 1; c_end = document.cookie.indexOf(";", c_start); if (c_end == -1) c_end = document.cookie.length; return unescape(document.cookie.substring(c_start, c_end)); } } return ""; } function setCookie(c_name, value, expiredays) { var exdate = new Date(); exdate.setDate(exdate.getDate() + expiredays); document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()); }</span></strong>
<strong><span style="font-size: 12px;"><form action="index.html" method="post"> <input> <input type="submit"> </form></span></strong>