function swap(what)
	{
	var theDivs = document.getElementsByTagName('div');
	for(var i = 0; i < theDivs.length; i++)
	{
	if(theDivs[i].id.search('swap') == 0)
	{
	theDivs[i].style.display = 'none';
	}
	}
	document.getElementById('swap'+what).style.display = 'block';
	}
	window.onload = function()
	{
	var theDivs2 = document.getElementsByTagName('div');
	for(var j = 0; j < theDivs2.length; j++)
	{
	if(theDivs2[j].id.search('swap') != -1)
	{
	theDivs2[j].style.display = 'none';
	}
	}
	}