function jsnotsort(newsort) {
	var ascdesc = document.trailer.ad.value;
	var oldsort = document.trailer.o.value;
	if (oldsort == newsort) {
		if (ascdesc==0) {
			ascdesc = 1;
		} else {
			ascdesc = 0;
		}
	} else {
		ascdesc = 0;
	}
	document.trailer.ad.value = ascdesc;
	document.trailer.o.value = newsort;
	document.trailer.submit();
}
function prevnext(n) {
	document.trailer.n.value = n;
	document.trailer.submit();
}