var v_newwin

function openvideo(p_url, p_width, p_height) {

	var v_name = window.name + "popup";

	v_left = (screen.width) ? (screen.width - p_width) / 2 : 0;
	v_top = (screen.height) ? (screen.height - p_height) / 3 : 0;
	v_features = "width=" + p_width + ",height=" + p_height + ",top=" + v_top +
                     ",left=" + v_left;
	v_newwin = window.open( p_url, v_name, v_features);

	window.onunload = function() { v_newwin.close(); }
}