/* *
 * showPopup
 * 
 */
function showPopup(url, width, height, scroll) {
	if (parseFloat(navigator.appVersion) >= 4.0) {
		pos_x = parseInt(screen.width / 2.0) - (width / 2.0);
		pos_y = parseInt(screen.height / 2.0) - (height / 2.0);
	}

	var win = window.open(url, "popup" + width + "x" + height, "width=" + width + ",height=" + height + ",left=" + pos_x + ",top=" + pos_y + ",resizable=no,scrollbars="+scroll);
	try {
		win.focus();
		win.moveTo(pos_x, pos_y);
	} catch (e) {
		// How unfortunate.
	}
}