function pintar(objeto, color){
    objeto.style.backgroundColor = color;

}
function elegirHead(){
    width = screen.width;
    if (width > 1200){
        document.write('<div class="header1280"></div>');
    }else if(width > 1000){
        document.write('<div class="header1280"></div>');
    }
}

$(document).ready(function(){
    $(".menu, .derecha, .main").fadeIn(2000);
});