var current = 0;

var news_column_width = '230px';

function prev_news() {
    var news2show2 = $('#news'+(current+2));
    
    if (news2show2.length) {
        var news2show1 = $('#news'+(current+1));
        var news2hide = $('#news'+current);
        current++;
        news2hide.css({
            'width': '0',
            'padding-right': '0',
            'display': 'none'
        });
        news2show1.css({
            'width': news_column_width, 
            'padding-right': '20px',
            'display': 'block'
        });
        news2show2.css({
            'width': news_column_width, 
            'padding-right': '0',
            'display': 'block'
        });
    }

    if (!$('#news'+(current+2)).length) $('#prev_news').removeClass('active');
    if ($('#news'+(current-1)).length) $('#next_news').addClass('active');
}


function next_news() {
    var news2show1 = $('#news'+(current-1));
    
    if (news2show1.length) {
        var news2show2 = $('#news'+(current));
        var news2hide = $('#news'+(current+1));
        current--;
        news2hide.css({
            'width': '0',
            'padding-right': '0',
            'display': 'none'
        });
        news2show1.css({
            'width': news_column_width, 
            'padding-right': '20px',
            'display': 'block'
        });
        news2show2.css({
            'width': news_column_width, 
            'padding-right': '0',
            'display': 'block'
        });
    }

    if (!$('#news'+(current-1)).length) $('#next_news').removeClass('active');
    if ($('#news'+(current+2)).length) $('#prev_news').addClass('active');
}