var rv = -1;
if (navigator.appName == 'Microsoft Internet Explorer')
{
	var ua = navigator.userAgent;
	var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
	if (re.exec(ua) != null)
	  rv = parseFloat( RegExp.$1 );
}

// IE6 Fix
function ToggleNavCurves(docId)
{
	if (rv==6)
	{
		var oLeftCurve = document.getElementById('left' + docId);
		var oRightCurve = document.getElementById('right' + docId);
		
		oLeftCurve.className =(oLeftCurve.className == 'leftCurveOn' ? 'leftCurve' : 'leftCurveOn');
		oRightCurve.className =(oRightCurve.className == 'rightCurveOn' ? 'rightCurve' : 'rightCurveOn');
	}
}
// IE6 Fix
function ToggleInlineNavCurves(id)
{
	if (rv==6)
	{
		var oLi = document.getElementById(id);
		oLi.className =(oLi.className == 'current' ? '' : 'current');
	}
}