$(document).ready(function () {

    var colorBlocks = [
        'yellow',
        'green',
        'blue',
        'white',
        'orange'
    ]

    $.each(colorBlocks, function (i) {
        $('#' + this).css("background", this);
        // When you use the alert you can see the boxes change color one by one
        // alert(something);
    });

});