是个幼稚的问题。但我很想知道答案和为什么？？

<script> function openwin() {window.open("page.html","","width=200,height=200")} function get_cookie(Name) {var search = Name + "=" var returnvalue = ""; 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; returnvalue=unescape(document.cookie.substring(offset,end)) } } return returnvalue; } function loadpopup(){ if (get_cookie('popped')==''){ openwin() document.cookie="popped=yes" } } </script>

如果执行语句document.cookie="popped=yes"后,是不是就把cookie中原来的信息全部删掉了啊？