var WP_Dark_Comment = Class.create();
WP_Dark_Comment.prototype = {
    form: null, 
    url: '', 
    initialize: function(url) {
        this.url = url;
        posttwo = $('posttwo');
        if( !posttwo ) {
            return true;
        } 
        form = posttwo.getElementsByTagName('form')[0];
        if( form !== undefined ) {
            this.form = form;
            form.onsubmit = this.handleSubmit.bindAsEventListener(this);
        }
    },
    
    handleSubmit: function(evt) {
        $A(this.form.getElementsByTagName('input')).each( function(el) { if (el.getAttribute('type') == 'submit') { el.setAttribute('value', 'Stand by...'); }});
        new Ajax.Request(
            this.url,
            {
                method: 'post',
                postBody: Form.serialize(this.form) + '&ajax=1',
                onSuccess: this.handleRequest.bindAsEventListener(this),
                onFailure: this.handleError.bindAsEventListener(this)
            }
        );
        return false;
    },
    
    handleRequest: function(response) {
        c = $('posttwo'); cmts = Array();
        $A(c.getElementsByTagName('div')).each( function(div) { if( c == div.parentNode ) { cmts[cmts.length] = div; }});
            
        comment = window.document.createElement('div');
        if((cmts.length - 1) == 0) {
            comment.className = 'commentodd';
            comment.innerHTML = response.responseText;
            c.insertBefore(comment, c.getElementsByTagName('h2')[0].nextSibling);
            $('posttwo').getElementsByTagName('h2')[0].innerHTML = '1 COMMENT';
        } else {
            firstComment = $('posttwo').getElementsByTagName('div')[1];
            newClass = (firstComment.getAttribute('class') == 'commentodd') ? 'commenteven' : 'commentodd';
                
            comment.className = newClass;
            comment.innerHTML = response.responseText;
            c.insertBefore(comment, firstComment);
        
            c.getElementsByTagName('h2')[0].innerHTML = cmts.length + ' COMMENTS';
        }
        np = new fx.Height(comment, {duration: 2000});
        np.hide();
        new fx.Height(this.form.parentNode, {duration: 2000, onComplete: function() {np.toggle();}}).toggle();
    },
    
    handleError: function(response) {
        alert(response.responseText);
        $A(this.form.getElementsByTagName('input')).each( function(el) { if (el.getAttribute('type') == 'submit') { el.setAttribute('value', 'Submit Comment'); }});
    }
}