// JavaScript Document

 	var lastBut = 7;
	function switchto(id)
	{
		document.getElementById('option-' + lastBut).style.display = 'none';
		document.getElementById('option-' + id).style.display = 'block';
		lastBut = id;
		
		var ourTabs = document.getElementById('but-anchors').getElementsByTagName("li");
		
		for(var i = 0; i < ourTabs.length; i++)
		{
			if ((i + 1) == id)
			{
				ourTabs[i].className = 'active' + (i+1);
			}
			else
			{
				ourTabs[i].className = 'but' + (i+1);
			}
		}
				
	}