// Castellian Web Designs Javascript Functions
// Copyright 2009 - 2010, Castellian Web Designs

// Toggles features between displayed (block) and hidden (none)
function feat_toggle(id)
{
	var state = document.getElementById(id);
//	var spos = id.length - 1;
//	var num = id.substring(spos);
	
	if (state.style.display == "block") 
	{
		return;
	}
	else
	{
		close_all();
		state.style.display = "block";
	}
}

// Closes all features to ensure known states
function close_all()
{
	for (i=1; i<=2; i++)
	{
		id = "feat" + i;
		var state = document.getElementById(id);
		state.style.display = "none";
	}
}

// Random Ad Display

function init()
{
	images = new Array(5);
	for ( var i=0; i<5 ; i++)
	{
		images[i] = new Image();
		images[i].src = "graphics/ad-blocks/ad-block-" + i + ".png";
	};
}

function adset(num)
{
	document.adblock.src = images[num].src;
}

function start_val()
{
	var start=Math.floor(Math.random()*5);
	return start;
}