function showImageDesc(id)
{
	var parent = document.getElementById('park_description');
	if(parent)
	{
		var i,div=0,item;
		for(i=0;i<parent.childNodes.length;i++)
		{
			item = parent.childNodes.item(i);
			if(item.nodeName == 'DIV')
			{
				if(id==div)
				{
					item.className = 'show';
				} else {
					item.className = 'hide';
				}
				div++;
			}
		}
		delete(item,div,parent);
	}
}