Highcharts chart doesn't show in jquery dialog
===

I'm trying to show a chart into jQuery dialog. I actually do it, but only the first time. When I reload the page and show the dialog, i get only an empty space. Here's some code:

    function () {
        var dialog = $('#div_id').dialog({
    	    'autoOpen': false,
    	    'closeOnEscape':true, 
    	    'buttons':[{ 
    		'text':'OK',
    		'click': function() { $(this).dialog('close'); }
    	    }],
    	    'modal':true
    	});
    	$("#show_dialog_button").click(function () {
    	        dialog.dialog('open');
                var chart = Highcharts.Chart({/*some configs here*/});
                var jqChart = $("#"+chart.options.chart.renderTo);
	        HighchartsHelper.autoResizeChart(jqChart,chart);
        }
    }

I hope somebody can help.