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JS操作Cookie 大全

 2009-06-30 04:02:00 来源:WEB开发网   
核心提示:<SCRIPT language=javascript>function setCookies(name,value){ var Days = 30; //此 cookie 将被保存 30 天 var exp = new Date(); //new Date("December 31, 9998&

<SCRIPT language=javascript>
function setCookies(name,value)
{
   var Days = 30; //此 cookie 将被保存 30 天
   var exp   = new Date();     //new Date("December 31, 9998");
   exp.setTime(exp.getTime() + Days*24*60*60*1000);
   document.cookie = name + "="+ escape(value) +";expire*="+ **p.toGMTString();
}

function getCookies(name)
{
   var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
   if(arr != null) return unescape(arr[2]); return null;
}

function getcookies()
{

   document.form1.UserName.value=getCookies("Loginusername");
   \把你要表单初始化放在这
}

function delCookies(name)
{
   var exp = new Date();
   exp.setTime(exp.getTime() - 1);
   var cval=getCookie(name);
   if(cval!=null) document.cookie=name +"="+cval+";expire*="+**p.toGMTString();
}

function submit()
{
username=document.form1.UserName.value;
   setCookies('Loginusername',username)
   \创建一个cookies,第一个为名字,后面的为值
}
</script>

<body   onload="getcookies()">
</body>

/////////////////////////////////////////////////////////////////////

function getExpDate(days, hours, minutes) {

    var expDate = new Date( );

    if (typeof days == "number" && typeof hours == "number" &&

        typeof hours == "number") {

        expDate.setDate(expDate.getDate( ) + parseInt(days));

        expDate.setHours(expDate.getHours( ) + parseInt(hours));

        expDate.setMinutes(expDate.getMinutes( ) + parseInt(minutes));

        return expDate.toGMTString( );

    }

}

  

// utility function called by getCookie( )

function getCookieVal(offset) {

    var endstr = document.cookie.indexOf (";", offset);

    if (endstr == -1) {

        endstr = document.cookie.length;

    }

    return unescape(document.cookie.substring(offset, endstr));

}

  

// primary function to retrieve cookie by name

function getCookie(name) {

    var arg = name + "=";

    var alen = arg.length;

    var clen = document.cookie.length;

    var i = 0;

    while (i < clen) {

        var j = i + alen;

        if (document.cookie.substring(i, j) == arg) {

            return getCookieVal(j);

        }

        i = document.cookie.indexOf(" ", i) + 1;

        if (i == 0) break;

    }

    return "";

}

  

// store cookie value with optional details as needed

function setCookie(name, value, expires, path, domain, secure) {

    document.cookie = name + "=" + escape (value) +

        ((expires) ? "; expires=" + expires : "") +

        ((path) ? "; path=" + path : "") +

        ((domain) ? "; domain=" + domain : "") +

        ((secure) ? "; secure" : "");

}

  

// remove the cookie by setting ancient expiration date

function deleteCookie(name,path,domain) {

    if (getCookie(name)) {

        document.cookie = name + "=" +

            ((path) ? "; path=" + path : "") +

            ((domain) ? "; domain=" + domain : "") +

            "; expires=Thu, 01-Jan-70 00:00:01 GMT";

    }

}

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Tags:JS 操作 Cookie

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