function VKCmnt_toogleNext(num)
{
	var VK = VKCmnt_getIsVK();
	var FB = VKCmnt_getIsFB();
	if (num == 1) {
		$$('div.comments').setStyle('display','block');
		$('VKCmnt_toogleNA').addClass('VKCmnt_toogleActive');

		if (VK) {
			$('vk_comments').setStyle('display','none');
			$('VKCmnt_toogleVK').removeClass('VKCmnt_toogleActive');
		}

		if (FB) {
			$('fb_comments').setStyle('display','none');
			$('VKCmnt_toogleFB').removeClass('VKCmnt_toogleActive');
		}

		return 0;
	}
	if (num == 2) {
		if (VK) {
			$('vk_comments').setStyle('display','block');
			$('VKCmnt_toogleVK').addClass('VKCmnt_toogleActive');
		}

		$$('div.comments').setStyle('display','none');
		$('VKCmnt_toogleNA').removeClass('VKCmnt_toogleActive');

		if (FB) {
			$('fb_comments').setStyle('display','none');
			$('VKCmnt_toogleFB').removeClass('VKCmnt_toogleActive');
		}

		return 0;
	}
	if (num == 3) {
		if (FB) {
			$('fb_comments').setStyle('display','inline-block');
			$('VKCmnt_toogleFB').addClass('VKCmnt_toogleActive');
		}

		$$('div.comments').setStyle('display','none');
		$('VKCmnt_toogleNA').removeClass('VKCmnt_toogleActive');

		if (VK) {
			$('vk_comments').setStyle('display','none');
			$('VKCmnt_toogleVK').removeClass('VKCmnt_toogleActive');
		}

		return 0;
	}
	return -1;
}

function VKCmnt_toogleNA()
{
	VKCmnt_toogleNext(1);
}

function VKCmnt_toogleVK()
{
	VKCmnt_toogleNext(2);
}

function VKCmnt_toogleFB()
{
	VKCmnt_toogleNext(3);
}

function VKCmnt_UpdateCommentsVK(num, last_comment, date, api_secret)
{
        var params = new Hash();
        params['sig']=api_secret;
        params['date']=date;
        params['last_comment']=last_comment;
        params['num']=num;
        params['id']=VKCmnt_getTopicId();

        new Request.JSON({
        	url: aRouter['blog']+'vkcomments/',
        	noCache: true,
        	data: params
        }).send();
}