// JScript File

var destaque, noticias, eventos, abas;

var vis, src;

function setVars() {
    if (document.getElementById) // this is the way the standards work
    {
        destaque = document.getElementById('destaque');
        noticias = document.getElementById('noticias');
        eventos = document.getElementById('eventos');
        
        abas = document.getElementById('abas');
    }
    else if (document.all) // this is the way old msie versions work
    {
        destaque = document.all['destaque'];
        noticias = document.all['noticias'];
        eventos = document.all['eventos'];
        
        abas = document.all['abas'];
    }
    else if (document.layers) // this is the way nn4 works
    {
        noticias = document.layers['destaque'];
        noticias = document.layers['noticias'];
        eventos = document.layers['eventos'];
        
        abas = document.layers['abas'];
    }

}

function toggleDestaque() {

    setVars();

    vis = destaque.style;
    vis.display = 'block';
    
    vis = noticias.style;
    vis.display = 'none';

    vis = eventos.style;
    vis.display = 'none';
    
    abas.setAttribute('src', 'app_image/aba_destaque.gif');
    
}

function toggleNoticias() {

    setVars();

    vis = destaque.style;
    vis.display = 'none';

    vis = noticias.style;
    vis.display = 'block';

    vis = eventos.style;
    vis.display = 'none';

    abas.setAttribute('src', 'app_image/aba_noticias.gif');

}

function toggleEventos() {

    setVars();

    vis = destaque.style;
    vis.display = 'none';

    vis = noticias.style;
    vis.display = 'none';

    vis = eventos.style;
    vis.display = 'block';

    abas.setAttribute('src', 'app_image/aba_eventos.gif');

}