function setCookie(c_name, value, expiredays)
{  
    var exdate=new Date();  
    exdate.setDate(exdate.getDate() + expiredays);  
    document.cookie=c_name+ "=" + escape(value) + ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());  
}  
           
function getCookie(name)  
{  
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");  

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

        return (arr[2]);  
    else  
        return null;  
}  

  function subComment(that)
  {
      var dataId = $("#data_id").val();
      var commContent =$(that).parent().siblings(".comment-textarea").html();

      var commContentTxt =$(that).parent().siblings(".comment-textarea").text();

      var commentId = $(that).parent(".publish").parent(".reply-commert").parent(".re-reply-lists").siblings(".replay-head").attr('netid');
      commentId = typeof(commentId) === 'undefined' ? 0 : commentId;
      var url = $("#data_id").parent().attr('action');
      if(commContentTxt=="" && commContent!=""){
       alert("纯表情会让人误以为您是表情帝，还是说点实在的吧！");
       return;
      }
     if(commContentTxt==""||commContentTxt.length<5||commContentTxt.length>500){
       alert("评论内容长度为5~500个字！");
       return;
     }
     if($("#data_time").val()=="1"){
       setTimeout(function(){
        $("#data_time").val("0");
       },60000)
       alert("水也不是这么灌的，请您休息一分钟再发表评论！");
       return;
      }
      if(getCookie("timeC"+dataId)=="succ"){
       alert("不好意思，您已经评价了！");
       return;
      }
      
       $.post(url, {data_id: dataId, commcontent: commContent, comment_id:commentId}, function(data){
           if( data.code == 0 )
           {
                alert("评论添加成功，请等待审核");
                $("#data_time").val("1")
                setCookie("timeC"+dataId,"succ");
                $(that).parent().siblings(".comment-textarea").html('');
           }
           else
           {
               alert(data.msg);
               return false;
           }
       },'json');
  }

/*
 * 教程点赞
 * @param {int} type 1：点赞；2：不好
 * @returns {undefined}
 */
function doGrade(type)
{
    var dataId = $("#data_id").val();
    var url = 'http://duote.runjiapp.com/tech/AddPingjia/';
    $.post(url, {data_id: dataId,st:type}, function(data){
        if( data.code == 0 )
        {
            if(type == 1)
            {
                var goodNum = $(".detail-footer a em")[0].innerHTML;
                goodNum = parseInt(goodNum) + 1;
                $(".detail-footer a em")[0].innerHTML=goodNum;
                $(".detail-footer a").each(function(){
                    $(this).attr('onclick','');
                    $(this).attr('disabled',true);
                });
            }
            else if(type == 2)
            {
                var badNum = $(".detail-footer a em")[1].innerHTML;
                badNum = parseInt(badNum) + 1;
               $(".detail-footer a em")[1].innerHTML=badNum;
            }

        }
        else
        {
            alert(data.msg);
            return false;
        }
    },'json');
       
}

/*
 * 上传图片验证
 * 
 * @param {obj} fileobj 上传按钮
 * @param  {obj} imgobj 预览图片对象
 */
function checkImg(fileObj,imgObj, width, height, size)
    {
        var url;  
        if (fileObj.files) {  
            if (window.navigator.userAgent.indexOf("MSIE") >= 1) {  
                fileObj.select();  
                url = document.selection.createRange().text;  
            }  
            url = window.URL.createObjectURL(fileObj.files[0]);  
        } else {  
            url = fileObj.value;  
            url = "file:///" + url;  
        }  
        image = new Image();
        image.src = url; 
        
        if(size)
        {
            var fileSize = fileObj.files[0].size/1024;
            if(parseInt(fileSize) > size)
            {
                alert("图片大小不能超过"+size+"k");
                $(fileObj).val('');
                imgObj.attr('src', '');
                return false;
            }
        }
        image.onload = function() {  
//            image.src = url; 
            if (image.width != width || image.height != height) {  
                alert("请上传尺寸为"+width+"*"+height+"的图片！");
                $(fileObj).val('');
                return false;
            }else{  
                 imgObj.attr('src', url);
                 $(imgObj).show();
                 return true;
            } 
            
        };  
        /*
        if(width)
        {
            if(nWidth!=width)
            {
                alert("图片要求宽为："+width+"px");
                $(fileObj).val('');
                imgObj.attr('src', '');
                return false;
            }
        }
        if(height)
        {
            if(nHeight!=height)
            {
                alert("图片要求高为："+height+"px");
                $(fileObj).val('');
                imgObj.attr('src', '');
                return false;
            }
        }
        */
        
    }
    
    /*
     * 评论点赞
     */
   function DoGood(that)
   {
        var comment_id = $(that).parent(".rt-reply").parent(".replay-head").attr('netid');
        var url = $("#add_good_url").val();
        $.post(url, {comment_id: comment_id}, function(data){
            if( data.code == 0 )
            {
                var goodNum = that.innerHTML;
                goodNum = parseInt(goodNum) + 1;
                that.innerHTML=goodNum;
                $(that).addClass('cur');
                $(that).attr('onclick','');
                $(that).attr('disabled',true);
            }
            else
            {
                alert(data.msg);
                return false;
            }
        },'json');
   }
    /*
     * 
     * 加入收藏
     */
    function addBookmark() {
            /*tj('g392', '');*/
            var title = document.title;
            var url = window.location.href;
            if (window.sidebar) {
                try {
                    window.sidebar.addPanel(title, url, '');
                } catch (e) {
                    alert("您的浏览器不支持该功能,请使用Ctrl+D收藏本页");
                }
            } else {
                try {
                    window.external.AddFavorite(url, title);
                } catch (e) {
                    alert("您的浏览器不支持该功能,请使用Ctrl+D收藏本页");
                }
            }
        }