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JAVASCRIPT 读写Cookie

2006-04-04 14:38 525 查看
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>

<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!--
function SetCookie(name,value){
var argv=SetCookie.arguments;
var argc=SetCookie.arguments.length;
//一天过期
var expires = new Date();
// var expires=(2<argc)?argv[2]:null;
var path=(3<argc)?argv[3]:null;
var domain=(4<argc)?argv[4]:null;
var secure=(5<argc)?argv[5]:false;

expires.setDate(expires.getDate()+1);

alert(expires); // 加一天

document.cookie=name+"="+escape(value)+((expires==null)?"":("; expires="+expires))+((path==null)?"":("; path="+path))+((domain==null)?"":("; domain="+domain))+((secure==true)?"; secure":"");
}

function GetCookie(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;
}

//-->
</SCRIPT>

<INPUT TYPE="button" value="写Cookies" onclick="SetCookie('name',123)"><br>
<INPUT TYPE="button" value='读Cookies' onclick="alert(GetCookie('name'));">
</BODY>
</HTML>
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