JS new cookies take Cookie value to delete cookies for example

Cookies are a useful feature that can be used to determine the status of a given item and is highly used in a project

    function setCookie(name,value)  

    {  

        var Days = 30;  

        var exp = new Date();  

        exp.setTime(exp.getTime() + Days*24*60*60*1000);  

        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();  

        var strsec = getsec(time);  

        var exp = new Date();  

        exp.setTime(exp.getTime() + strsec*1);  

        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();  

    }  

    //Read cookies  < br / >
    function getCookie(name)  

    {  

        var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");  

        if(arr=document.cookie.match(reg))  

            return (unescape(arr[2]));  

        else  

            return null;  

    }  

    //Delete cookies  < br / >
    function delCookie(name)  

    {  

        var exp = new Date();  

        exp.setTime(exp.getTime() - 1);  

        var cval=getCookie(name);  

        if(cval!=null)  

            document.cookie= name + "="+cval+";expires="+exp.toGMTString();  

    }