function f_openwindow(v_page, v_name, v_width, v_height){

	v_posX = 10;//(screen.width - v_width) / 2;

	v_posY = (screen.height - v_height) / 2;

	v_detail = 'height=' + v_height + ',width=' + v_width + ',top=' + v_posY + ',left=' + v_posX + ',scrollbars=0' + ',resizable=0';

	newwindow = window.open(v_page, v_name, v_detail);

	newwindow.focus();

}