function changeTab(id)
{
    var activeTab = $('#' + id);
    var activeTabContent = $('.active');
    var inactiveTabContent = $('.inactive');   
     
    $('#tabHeader ul li').removeClass('selected');
    activeTab.addClass('selected');

    inactiveTabContent.removeClass('inactive');
    inactiveTabContent.addClass('active');
    
    activeTabContent.removeClass('active');
    activeTabContent.addClass('inactive');
}

function getCoordinates() {

    var retCoor = "";
    $.ajax({
        type: 'POST',
        url: 'ajax/getMapPoints_json.aspx',
        async: false,
        data: '[]',
        contentType: 'application/json; charset=utf-8',
        dataType: 'json',
        success: function(json) {
       
            for (var i = 0; i < json.blog.length; i++) {
                retCoor += json.blog[i].coordinate + "," + json.blog[i].id + "," + json.blog[i].title + "|"     
                             
            }
        }
    });
    return retCoor;
}