function init()
		{
			if(document.getElementById && document.createElement)
			{
				var mn=document.getElementById('mainnav');
				var as=mn.getElementsByTagName('a');
				for (var i=0;i<as.length;i++)
				{
					as[i].onclick=function(){show(this);return false}
					as[i].onkeypress=function(){show(this);return false}
				}
				var ps=document.getElementsByTagName('p');
				var psfound=new Array()
				var count=0;
				for (var i=0;i<ps.length;i++)
				{
					if (ps[i].className=='back')
					{
						psfound[count]=ps[i];
						count++;
					}
				}		
				for (var i=0;i<psfound.length;i++)
				{	
						var isp=psfound[i];	
						psfound[i].parentNode.removeChild(isp)
				}		
				hidem();
				show(document.getElementsByTagName('a')[2])
			}
		}
		function show(l)
		{
			hidem();
			var mn=document.getElementById('mainnav');
			var as=mn.getElementsByTagName('a');
			for (var i=0;i<as.length;i++)
			{
				as[i].style.background='#cc6';
			}
			l.style.background='#f8f8f8';
			var id=l.href.match(/#(\w.+)/)[1];
			document.getElementById(id).style.display='block';
		}

		function hidem()
		{
			for (var i=0;i<document.getElementsByTagName('div').length;i++)
			{
				document.getElementsByTagName('div')[i].style.display='none';
			}
		}
		window.onload=init;