function margin_image_open() {

	options = "";
	if (arguments[1] > 0) {
		options = options + "width=" + arguments[1];
	}
	if (arguments[2] > 0) {
		options = options + ",height=" + arguments[2];
	}
	options = options + ",resizable=yes";
	options = options + ",scrollbars=no";
	options = options + ",menubar=no";
	options = options + ",toolbar=no";
	options = options + ",directories=no";
	options = options + ",location=no";
	options = options + ",status=yes";			
	
	window.open(arguments[0], 'Image', options);
}