gistfile1.js

var count = 0;
var __actionMessage = false;

function atualizaLoad() {
    var elem = $( "loadCenterContent" );
    if (count == 0) {
        $( "loadCenter" ).removeClassName( "loadCenterMaior" );
        $( "loadCenter" ).addClassName( "loadCenter" );
        elem.innerHTML = "Carregando";
    }

    count++;
    if (count == 10) {
        $( "loadCenter" ).removeClassName( "loadCenter" );
        $( "loadCenter" ).addClassName( "loadCenterMaior" );
        elem.innerHTML = "Ainda Carregando";
    }
    if (elem.innerHTML.indexOf( "....." ) != -1) {
        if (count >= 10) {
            $( "loadCenter" ).removeClassName( "loadCenter" );
            $( "loadCenter" ).addClassName( "loadCenterMaior" );
            elem.innerHTML = "Ainda Carregando";
        } else {
            $( "loadCenter" ).removeClassName( "loadCenterMaior" );
            $( "loadCenter" ).addClassName( "loadCenter" );
            elem.innerHTML = "Carregando";
        }
    }
    elem.innerHTML = elem.innerHTML + ".";
}

function load(start) {
    if (start) {
        document.body.addClassName( 'waiting' );
        if (!__actionMessage) {
            $( "loading" ).show();
        }
        try {
            executer.stop();
        } catch (e) {
        }
        executer = new PeriodicalExecuter( atualizaLoad, 0.5 );

    } else {
        document.body.removeClassName( 'waiting' );
        try {
            executer.stop();
        } catch (e) {

        }
        count = 0;
        if (!__actionMessage) {
            $( "loading" ).hide();
        }
    }
}