// JavaScript Document

function showhide(id)
{
	var challenge = document.getElementById("challenge-" + id);
	var element = document.getElementById("showhide-" + id);
	
	if (element.style.display != "block")
	{
		// Show
		element.style.display = "block";
		challenge.className = "challenge show";
	}
	else
	{
		// Hide
		element.style.display = "none";
		challenge.className = "challenge hide";
	}
	
	//alert(element.className);
}