function load_users(params) {
    $("#lotmap").addClass("loading").html('');
    if (params) city = params.city;
    else city = '';
    $.get("/gateway.php", {
        module: 'users',
        action: 'load',
        city: city,
        data_type: 'json'
    }, function(data){
        if (data.success) $("#lotmap").removeClass("loading").html(data.html);
        else alert(data.content);
        lotmap_init();
    }, "json");
    
    
}