// wp-content/themes/yuewei File
//short for document.getElementById
function $() {
        if (arguments.length == 1) return get$(arguments[0]);
        var elements = [];
        $c(arguments).each(function(el){
                elements.push(get$(el));
        });
        return elements;
}
function get$(el){
        if (typeof el == 'string') el = document.getElementById(el);
        return el;
}

function $c(array){
        var nArray = [];
        for (i=0;el=array[i];i++) nArray.push(el);
        return nArray;
}

// get parameters of the comment form
function getParams(f){
        if(typeof(f)=='string')        f = $(f);
        var p='';
        var fi = f.getElementsByTagName('input');
        for (i=0; i<fi.length; i++ ) {
                e=fi[i];
                if (e.name!='') {
                        if (e.type=='select')
                                element_value=e.options[e.selectedIndex].value;
                        else if (e.type=='checkbox' || e.type=='radio') {
                                if (e.checked==false)        continue;        
                                element_value=e.value;
                        }
                        else {
                                element_value=e.value;
                        }
                        p+="&"+e.name+'='+encodeURIComponent(element_value);
                }
        }
        fi = f.getElementsByTagName('textarea');
        for (i=0; i<fi.length; i++)        p+="&"+fi[i].name+"="+encodeURIComponent(fi[i].value);
        p += "&random="+Math.random();
        return p;
}

// move comment form to proper position to reply exist comments.
function moveForm(a) {
        var id                = $('comment_reply_ID'),
                disp        = $('reRoot').style,
                form        = $('commentform'),
                e                = $('comment-'+a);
        var es = $('commentform').getElementsByTagName('*');
        
        form.parentNode.removeChild(form);
        if (a) {
                var c = e.getElementsByTagName('ul')[0];
                if (c)
                        e.insertBefore(form, c);
                else
                        e.appendChild(form);
        } else {
                $('cmtForm').appendChild(form);
        }
        disp.display = (a ? 'inline' : 'none');
        if (id) id.value = (a ? a : 0);
        if (a && $('author')) {$('author').focus();}
        return;
}

//the function to get an ajax instance
function getXMLInstant(r)
{
        var xx;
        if(r!=1)ajaxStatus("block");
        if (window.XMLHttpRequest) 
        { // Mozilla, Safari,...
                xx = new XMLHttpRequest();
        } 
        else if (window.ActiveXObject) { // IE
                try {
                        xx = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                        try {
                                xx = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (e) {}
                }
        }
        if (!xx) {
                alert('Giving up :( Cannot create an XMLHTTP instance');
                return false;
        }
        
        return xx;
}
//the function to send comment
function AjaxSendComment()
{
   var gi = getXMLInstant(1), r = $('comment_reply_ID').value, t, c, now = parseInt(Math.random()*1000);
        
        if (r == 0) {
                t = 'comments';
                c = $(t);
        } else {
                t = 'comment-'+r;
                var u = $(t).getElementsByTagName('ul')[0];
                if (u) {
                        c = u;
                } else {
                        c = document.createElement('ul');
                        $(t).appendChild(c);
                }
        }
        // backup comment in case of Comment fail
        var content = $("comment").value;
        var author = "admin", email="a@b.c";
        var temp = content;
        if($("author"))author = $("author").value;
        if($("email"))email = $("email").value;
        //check the author and content input area is fixed
        if(content == "" || ( (needemail=="1") && (author == "" || email == ""))){
                if(author ==""){ alert("Необходимо указать имя"); if($("authorrequire"))$("authorrequire").style.color="red";$("author").focus();}
                else if(email==""){ alert("Необходим ваш email");; if($("emailrequire"))$("emailrequire").style.color="red";$("email").focus();}
            else{ alert("comment can not be empty");$("comment").focus();}
                   return true;
        }
        
        //add comment to local comment list
        content = content.replace(/\r\n\r\n/g, "</p><p>");
        content = content.replace(/\r\n/g, "<br />");
        content = content.replace(/\n\n/g, "</p><p>");
        content = content.replace(/\n/g, "<br />");
        var dateObj = new Date();
        c.innerHTML = c.innerHTML + "<li id='newComment"+now+"'><div class=\"commenthead newcomment\">"+dateObj.toLocaleString()+", <span class=\"author\">"+ author+ "</span> пишет: </div><div class=\"body\"><p>"  + content+ "</p></div><div class='meta' id='submitcomment'>Вы добавили новый комментарий ...</div></div></li>";
        
        //the state function of ajax 
        gi.onreadystatechange = function()
    {
        if (gi.readyState == 4) {
            if (gi.status == 200) {
               $('newComment'+now).innerHTML=gi.responseText;
                                        // ajaxStatus("none");
                                        if(gi.responseText.search(/Slow down cowboy/) > -1 || gi.responseText.search(/Duplicate comment detected/) > -1)
                                                $('comment').value = temp;
            } else {
                                $('comment').value = temp;
                                $('submitcomment').innerHTML = 'Стоп, вы зачастили или это дубликат комментария...';
                                alert('Не удалось добавить ваш комментарий. ');
            }
        }
    }
        
        //send form by ajax
        var p=getParams("commentform"); // get parameters of form
        gi.open('POST', blogurl+"/wp-content/plugins/ajaxcomment/comments-ajax.php", true);
   gi.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
   gi.setRequestHeader("Content-length", p.length);
   gi.setRequestHeader("Connection", "close");
   gi.send(p);
    
        //after send form, move the comment form to original position.
   comment_preview(false);
   moveForm(0);

   $('comment').value = '';
   
   return true;
}

function ajaxPost(u, p, e, s, m){
        var g = getXMLInstant();
            
        if ($(e))        e = $(e); 
        
        g.onreadystatechange = function(){
                if (g.readyState == 4) {
                      if (g.status == 200) {
                                if (typeof(m) != "undefined" && m == "delete") { if (e) e.parentNode.removeChild(e); }
                         else { if (e) e.innerHTML = g.responseText; }
                                if (s)         eval(s);
                                ajaxStatus("none");
                        } else {
                         alert('There was a problem with the request.');
                 }
                }
        }
    
        g.open('POST', u, true);
           g.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
           g.setRequestHeader("Content-length", p.length);
           g.setRequestHeader("Connection", "close");
           g.send(p);
        
}

// Get content by AJAX, u:url; e:element; j:jump; s:alert message; m: method

function ajaxShowPost(u, e, j, s, m){
        if ("undefined"!=typeof(nowurl) && u==nowurl) {
                window.location.href="#"+j;
                return;
        }
        if ( u.match(/getpost/) )        nowurl=u;
        var g = getXMLInstant();
            
        if ($(e))        e = $(e); 
        
        g.onreadystatechange = function(){
                if (g.readyState == 4) {
                      if (g.status == 200) {
                                if (typeof(m) != "undefined" && m == "delete") { if (e) e.parentNode.removeChild(e); }
                         else { if (e) e.innerHTML = g.responseText; }
                                if (j)        window.location.href = "#"+j;
                                if (s)         eval(s);
                                ajaxStatus("none");
                        } else {
                         alert('There was a problem with the request.');
                 }
                }
        }
    
   g.open('GET', u, true);
   g.send(null);
}

// toggle #ajax status
function ajaxStatus(s) {
        if (!$("ajax")) return;
        $("ajax").style.display = s;
}

function comment_preview(i) {
        if (typeof(i)=='undefined' && $('copreview').style.display != 'block' || typeof(i) != 'undefined' && i == true) {
                if ($('copreview').style.display != 'block') {
                        var p=getParams("commentform");
                        ajaxPost(blogurl + '/wp-content/plugins/ajaxcomment/preview.php', p, 'copreview', "$('commentdiv').style.display = 'none';$('copreview').style.display = 'block';$('prectr').value = 'Редактировать';");
                }
        } else {
                if ($('copreview').style.display != 'none') {
                        $('prectr').value = 'Предпросмотр';
                        $('commentdiv').style.display = 'block';
                        $('copreview').style.display = 'none';
                        $('comment').focus();
                }
        }
}