/**
 * Enable, disable TDG Visibility for 'moretdg' DIV Tag
 */
var tdgSubTagName = 'tdg';
var srcImgOpened = '/images/arrow_bw_l.gif';
var srcImgClosed = '/images/arrow_bw_d.gif';
var tdgGroup = document.getElementById('moretdg');

addEvent(tdgGroup, 'mouseup', function(e) {
	
	var tdgImgObj = tdgGroup.getElementsByTagName('img');
	
	var tdgSub = document.getElementById(tdgSubTagName);

	if(tdgSub!=null && tdgSub.style!=null && tdgSub.style.display!=null)
	{
		if(tdgSub.style.display == 'none')
		{
			tdgSub.style.display =  '';
			
			if(tdgImgObj[0]!=null)
			tdgImgObj[0].src = srcImgClosed;
			return;
		}

		tdgSub.style.display =  'none';
		
		if(tdgImgObj[0]!=null)
		tdgImgObj[0].src = srcImgOpened;
	}
});