如何在黑莓小部件中创建/读取/删除cookie？

Question

如何在黑莓小部件中创建/读取/删除cookie？

Answer 1

有同样的问题，但在尝试了这些代码：

function createCookie(name, value, days) { 
    eraseCookie(name); 
    if (days) { 
     var date = new Date(); 
     date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000)); 
     var expires = "; expires=" + date.toGMTString(); 
    } 
    else var expires = ""; 
    document.cookie = name + "=" + value + expires + "; path=/"; 
} 

function readCookie(name) { 
    var nameEQ = name + "="; 
    var ca = document.cookie.split(';'); 
    for (var i = 0; i < ca.length; i++) { 
     var c = ca[i]; 
     while (c.charAt(0) == ' ') c = c.substring(1, c.length); 
     if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length); 
    } 
    return null; 
} 

function eraseCookie(name) { 
    createCookie(name, "", -1); 
}