/*
此方法用于所有文章搜索，只需要传递搜索关键词
*/
function searcharticle(keywords) {
    var words = ""; //申明搜索关键词
    var specialcharacter = new regexp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）——|{}【】‘；：”“'。，、？_%+]"); //枚举所有特殊字符
    for (var i = 0; i < keywords.length; i++) {
        words = words + keywords.substr(i, 1).replace(specialcharacter, ''); //剔除关键词中的特殊字符
    }
    if (words == "" || words == null) {
        alert("关键词不能为空！或者特殊字符！");
    }
    else {
        location.href = "/webarticle/search.html?cl=" + randomstring(8,'12346789abcdwxyzabcdwxyz') +"&bd=" + randomstring(16,'12346789abcdefghwxyzabcdefghwxyz') +"&keywords=" + encodeuricomponent(keywords) + "&key=" + randomstring(32, '0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz'); //编码后在传递，以防乱码
    }
}

function randomstring(length, chars) {
    var result = '';
    for (var i = length; i > 0; --i) result += chars[math.floor(math.random() * chars.length)];
    return result;
}