$.cookie('the_cookie'); // 读取 cookie 
$.cookie('the_cookie', 'the_value'); // 存储 cookie 
$.cookie('the_cookie', 'the_value', { expires: 7 }); // 存储一个带7天期限的 cookie 
$.cookie('the_cookie', '', { expires: -1 }); // 删除 cookie

<div style="display: none; position: absolute;" id="allSitesBoxHdl" class="classlist"
  onmouseover="this.style.display='block'" onmouseout="this.style.display='none'">
  <ul id="allSitesBoxContent">
  </ul>
</div>
<script type="text/javascript">
Init();
</script>

function FillUrls(cookieName) {
var urls = $.cookie(cookieName);
var html = "";
if (urls) {
var urllist = urls.split('|');
var forlength = 0;
var stringcookie;
for (var i = urllist.length - 1; i >= 0; i--) {
var textval = urllist[i];
if ($.trim(textval) != "" && $.trim(textval) != "undefined") {
html += "<li class="lis"><a href="javascript:InputSetValue('" + textval + "');">" + textval + "</a></li><br/>";
forlength = forlength + 1;
if (forlength > 10) {//在这里我只加载10条，大家可以根据自己的情况进行调整
$.cookie("site", stringcookie, { expires: 7 });
break;
} else {//如果超出10个的话就取最后10个
stringcookie = textval + "|" + stringcookie;
}
}
}
} else {
html += "<li>没有记录</li>"
}
getid("allSitesBoxContent").innerHTML = html;
}

function setCookie(name, value) {
var oldcookie = $.cookie(name);
if (oldcookie == null) {
$.cookie(name, value, { expires: 7 });
} else {
if ($.cookie(name).indexOf(value) == -1) {
$.cookie(name, oldcookie + "|" + value, { expires: 7 });
} else {
$.cookie(name, oldcookie.replace(value, "") + "|" + value, { expires: 7 });
}
}
FillUrls(name);
}