function loading_box(action){
    //armazena a largura e a altura da janela
    var winH = $(window).height();
    var winW = $(window).width();
    $('#loading_box').css('top',  winH/2-$('#loading_box').height()/2);
    $('#loading_box').css('left', winW/2-$('#loading_box').width()/2);
    if(action == "fadeIn"){
        $('#loading_box').fadeIn();
    }else if(action == "fadeOut"){
        $('#loading_box').fadeOut();
    }else{
        $('#loading_box').fadeToggle();
    }
}

/*Navegacao e historico*/
$.changed = false;
$.address.change(function(event){
    if(event.value && event.value!= "/"){
        loading_box("fadeIn");
        $("#main_body").load("http://www.lcm.com.br/site/"+event.value,function(){
            loading_box("fadeOut");
            $.changed = true;
        });
    }else if($.changed == true){
        loading_box("fadeIn");
        $("#main_body").load("http://www.lcm.com.br/site/pagina_inicial",function(){
            loading_box("fadeOut");
        })
    }
})

/*Redimensionar titulos e subtitulos*/
function redimensionar_titulo(){
    var titulo;
    var subtitulo;
    $('.titulo').each(function(){
        titulo = $(this).html();
        $(this).html(limit_characters(titulo,52,"..."));
    })
    $('.subtitulo').each(function(){
        subtitulo = $(this).html();
        $(this).html(limit_characters(subtitulo,64,"..."));
    })
}