chart_01 = new Image();
        chart_01.src = '/media/chart_01.gif';
	chart_02 = new Image();
        chart_02.src = '/media/chart_02.gif';
	chart_03 = new Image();
        chart_03.src = '/media/chart_03.gif';
	chart_04 = new Image();
        chart_04.src = '/media/chart_04.gif';
	chart_05 = new Image();
        chart_05.src = '/media/chart_05.gif';

	function changeChart(image) {


		if (document.images) {
			document.chart.src = image.src;
		}

	}