function showElement(elementName)
	{

		var strShowValue = '';
		var strBrowser = '';
		var element = null;

		strBrowser = getBrowser();
		switch(strBrowser)
		{
			case 'FF':
				strShowValue = 'table-row-group';
				break;

			default:
				strShowValue = 'block';
				break;

		}

		element = document.getElementById(elementName);
		if( element != null )
		{
			element.style.display=strShowValue;
		}

	}

	function hideElement(elementName)
	{

		var element = null;

		element = document.getElementById(elementName);
		if( element != null )
		{
			element.style.display='none';
		}

	}

	function isElementVisible(elementName)
	{

		var retVal = false;
		var element = null;

		element = document.getElementById(elementName);
		if( element != null )
		{
			if( element.style.display == 'none' )
			{
				retVal = false;
			}
			else
			{
				retVal = true;
			}
		}
		else
		{
			retVal = false;
		}

		return retVal;

	}