function openWindow(win_url,win_name,win_width,win_height,win_menubar,win_toolbar,win_scrollbars,win_status,win_location,win_resizable) {
	win_name = win_name || 'w4'; win_width = win_width || '800'; win_height = win_height || '600'; win_menubar = win_menubar || '1'; win_toolbar = win_toolbar || '1'; win_scrollbars = win_scrollbars || '1'; win_status = win_status || '1'; win_location = win_location || '1'; win_resizable = win_resizable || '1';
	var new_win;
	new_win=window.open(win_url, win_name, 'width=' + win_width + ',height=' + win_height + ',menubar=' + win_menubar + ',toolbar=' + win_toolbar + ',scrollbars=' + win_scrollbars + ',status=' + win_status + ',location=' + win_location + ',resizable=' + win_resizable + ', left=30, top=30');
	new_win.focus();
}