function sortbyChanged(dd)
	{
		var sortform = document.getElementById("sortform");
		sortform.sortby.value = dd.options[dd.selectedIndex].value;
		sortform.submit();
	}

	var compareWin = null;
	function openCompareWindow()
	{
		w = 780;
		h = 640;
		l = screen.width ? (screen.width - w) / 2 : 100;
		t = screen.height ? (screen.height - h) / 2 : 100;
		compareWin = window.open("/blank.htm", "comparisonwin", 
			"width="+w+",height="+h+",top="+t+",left="+l+",scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes" );
		document.getElementById("compform").submit();
		return false;
	}

	function toggleRefineSearch(atag)
	{
		var openDiv = document.getElementById("refine-search-open-div");
		var closedDiv = document.getElementById("refine-search-closed-div");
		if(openDiv.style.display == 'none') {
			openDiv.style.display = '';
			closedDiv.style.display = 'none';
		} else {
			openDiv.style.display = 'none';
			closedDiv.style.display = '';
		}
		return false;
	}