function change_display(head) {
		var oSrcEle = window.event.srcElement
		sImg666 = oSrcEle.src

		if (document.all.item(head).style.display == "") 
		{
			document.all.item(head).style.display = "none";
			oSrcEle.src = sImgExpandedArrow;
			oSrcEle.alt = "expand menu";
		}
		else 
		{
			document.all.item(head).style.display= "";
			oSrcEle.src = sImgDefaultArrow;
			oSrcEle.alt = "collapse menu";
		}
	}

function chngColour(sID)
		{
		var oMainBorder = document.all.item("main" + sID);
		var oHeaderBorder = document.all.item("header" + sID);
		var oArticle = document.all.item("article" + sID);
		var oArrowCol = document.all.item("arrowCol" + sID);
			if (oMainBorder.className == 'componentBorder')
				{
					oMainBorder.className = 'componentBorderSel';
					oHeaderBorder.className = 'componentBorderSel';
					oArticle.className = 'componentHeaderSel';
					oArrowCol.className = 'componentHeaderSel';
				}
			else
				{
					oMainBorder.className = 'componentBorder';
					oHeaderBorder.className = 'componentBorder';
					oArticle.className = 'componentHeader';
					oArrowCol.className = 'componentHeader';				
				}
		}