document.observe("img:loaded",function() {
    setSize();
    window.onresize = setSize;
});

function setSize() {
    var height = document.viewport.getDimensions().height;
    $('container').setStyle({'height':height+'px'});
    $('rest').setStyle({'height':height-$('header').getHeight()+'px'});
    $('sidebar').setStyle({'height':height-$('header').getHeight()+'px'});
    $('nav').setStyle({'height':height-$('header').getHeight()-1+'px'});
    $('content').setStyle({'height':height-$('header').getHeight()-1+'px'});
}

var activemenu = -1;
function navToggle(nbr) {
    if (activemenu != -1) {
        $('menu'+activemenu).setStyle({'display':'none'});
    }
    if (activemenu == nbr) {
        activemenu = -1;
        return;
    }
    $('menu'+nbr).setStyle({'display':'block'});
    activemenu = nbr;
    //setSize();
}