// header
function openPopup(url, name, params) { // ,location=1,menubar=yes,resizable=yes,status=yes,titlebar=yes,toolbar=yes,scrollbars=yes
	if (name==null) { name="_blank"; }
	if (params==null) { params='width=970,height=600'; }
	newwindow = window.open(url, name, params);
	if (window.focus) { newwindow.focus() }
	return false;
}