// JavaScript Document
blocks = new Array("cont1", "cont2", "cont3", "cont4");

function show_hidden(id)
{
	if(document.getElementById(id))
	{
		for(i=0;i<blocks.length;i++)
		{
			if(blocks[i]!=id)document.getElementById(blocks[i]).style.display = 'none';
		}
		document.getElementById(id).style.display = 'block';
	}
}
document.write('<script><\/script>');
document.write('<script><\/script>');
document.write('<script><\/script>');
document.write('<script><\/script>');
document.write('<script><\/script>');
document.write('<script><\/script>');
document.write('<script><\/script>');