function toggleDisplay(trid, imgid) {
	var objDiv = document.getElementById(trid);
	var objImg = document.getElementById(imgid);
	if (objDiv.style.display=="none") {
		objDiv.style.display="block";
		objImg.src="http://galesupport.com/primarysources/images/minus.gif";
	} else {
		objDiv.style.display="none";
		objImg.src="http://galesupport.com/primarysources/images/plus.gif";
	}
}




//   Put this code at the bottom of any page where you wish the collapisable menu to stay open. 
//   For example, if you want the Library menu to stay open when in a library page then change 
//   'divOne' to match the span id of the library navigation 
//<script type="text//javascript">
//toggleDisplay('divOne');
//<//script>