var varZoom = true;
var varCuadro = false;

google.load('visualization', '1', {packages: ['annotatedtimeline']});

    function drawVisualization() {
		var data = new google.visualization.DataTable();
      	cargarData(data);
      	var annotatedtimeline = new google.visualization.AnnotatedTimeLine(
      	document.getElementById('visualization'));
      	annotatedtimeline.draw(data, {'displayAnnotations': true, 'scaleType': 'maximized', 'dateFormat': 'dd MMMM yyyy', 'thickness':1, 'legendPosition':'newRow', 'displayLegendDots':false, 'allowRedraw':true, 'displayZoomButtons':varZoom, 'displayRangeSelector':varCuadro});
	}
    google.setOnLoadCallback(drawVisualization);


document.writeln('<table id="tablaExt" border="0" cellspacing="5" cellpadding="0" style="border:2px solid #C0DEED; background-color:#FFFFFF;">');
document.writeln('<tr>');
document.writeln('<td><div id="visualization" style="width: 282px; height: 200px; border:1px solid #CCCCCC; "></div></td></tr><tr>');
document.writeln('<td align="right"><a id="enlace" href="http://precio-del-petroleo.blogspot.com" target="_blank" style="font-size:9px;font-family: Verdana, Arial, Helvetica, sans-serif; color:#0033CC;">Blog del Precio del Petr&oacute;leo</a></td></tr></table>');