function selectMfg(fld, mfg_id) {
		if (fld.checked && mfg_id==0) {
			var flds = document.getElementsByClassName("mfgselect");
			for (i=0; i <= flds.length; i++) {
				flds[i].checked = false;
			}
		}
		if (fld.checked && mfg_id > 0) {
			document.getElementById("allmfg").checked = false;
		}
		resetPage(1);
	}

	function selectCat(fld, cat_id) {
		if (fld.checked && cat_id==0) {
			var flds = document.getElementsByClassName("catselect");
			for (i=0; i <= flds.length; i++) {
				flds[i].checked = false;
			}
		}
		if (fld.checked && cat_id > 0) {
			document.getElementById("allcat").checked = false;
		}
		resetPage(1);
	}

	function showPage(page_no) {
		document.getElementById("page").value=page_no;
		document.getElementById("page").form.submit();
	}

	function resetPage(page_no) {
		document.getElementById("page").value=page_no;
	}