CERFWindow = null;
function CERFSearch(queryString) {
	CERFWindow = window.open("", "CERFWindow", "");
    if (queryString != '') {
		if (!CERFWindow || CERFWindow.closed || !CERFWindow.mainframe) {
			CERFWindow = window.open(
				"http://www.cerfinfo.com/cerf/bin/booksys.asp?query=" + queryString,
				"CERFWindow", "");
		} else {
			CERFWindow.location.href =
				"http://www.cerfinfo.com/cerf/bin/search.asp?keyword=" + queryString;
		}
    } else {
		if (!CERFWindow || CERFWindow.closed || !CERFWindow.mainframe) {
			CERFWindow = window.open(
				"http://www.cerfinfo.com/cerf/",
				"CERFWindow", "");
		} else {
			CERFWindow.location.href = "http://www.cerfinfo.com/cerf/";
		}
    }
	CERFWindow.focus();
	return (CERFWindow != null);
}