$.blockUI.defaults.message = '<img src="/gfx/ajax-loader.gif" id="ajax-loader" style="margin-right: 10px;" />Aguarde...';
$.blockUI.defaults.css = {
    padding:        0,
    margin:         0,
    width:          '30%',
    top:            '40%',
    left:           '35%',
    textAlign:      'center',
    color:          '#000',
    border:         '0px',
    cursor:         'wait',
    fontSize:       '20px'
};
$.blockUI.defaults.overlayCSS =  {
    backgroundColor: '#FFF',
    opacity:         0.6
};