function toggleDisplay( element )
{
	var elem = document.getElementById( element );
	
	if ( elem == null )
		return;
	
	if ( getStyle( elem, 'display' ) != 'block' )
		elem.style['display'] = 'block';
	else
		elem.style['display'] = 'none';	
	
	return;
}

function getStyle( element, style )
{
	var value = element.style[style];
	
	if (!value)
	{
		if (document.defaultView && document.defaultView.getComputedStyle)
		{
			var css = document.defaultView.getComputedStyle(element, null);
			value = css ? css.getPropertyValue(style) : null;
		}
		else if (element.currentStyle) 
		{
			value = element.currentStyle[style.camelize()];
		}
	}
	
	return value;
}