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js cookie 值设置与获取方法

-->

<script language="网页特效">
 function getcookie (name)
{
 var arg = name + "=";
 var alen = arg.length;
 var clen = window.document.cookie.length;
 var i = 0;
 while (i < clen)
 {
 var j = i + alen;
 if (window.document.cookie.substring(i, j) == arg) return getcookieval (j);
 i = window.document.cookie.indexof(" ", i) + 1;
 if (i == 0)
 break;
 }
 return null;
}

function getcookieval (offset)
{
 var endstr = window.document.cookie.indexof (";", offset);
 if (endstr == -1)
 endstr = window.document.cookie.length;
 return unescape(window.document.cookie.substring(offset, endstr));
}
</script>

本文来源：http://www.gdgbn.com/wangyezhizuo/29069/