// pre-cache images - keep this outside of the function that uses it. 
	var imgPlus = new Image(9,9);
	imgPlus.src = "images/plus.gif";
	var imgMinus = new Image(9,9);
	imgMinus.src = "images/minus.gif";
	var imgEmpty = new Image(9,9);
	imgEmpty.src = "images/empty.gif";
	
function showHideDiv(vsDivName, vsImageId)
{
	imgPlus.src = "images/plus.gif";
	imgMinus.src = "images/minus.gif";

    var objEl = document.getElementById(vsDivName)
	
	if (objEl.style.display == "none")
	{
		objEl.style.display = "";
		if (document.getElementById(vsImageId) != null)
		{
			document.getElementById(vsImageId).src = imgMinus.src;
		}		
	}
	else
	{
		objEl.style.display = "none";
		if (document.getElementById(vsImageId) != null)
		{
			document.getElementById(vsImageId).src = imgPlus.src;
		}		
	}
}


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_jumpMenuGo(selName,targ,restore){ //v3.0
  var selObj = MM_findObj(selName); if (selObj) MM_jumpMenu(targ,selObj,restore);
}