var brsf = true;
var graphicsDir;

// preload off screen images
var cacheObj = new Array();
function loadoffScreenImages()
{
	var argArray = (typeof arguments[0] == "object") ? arguments[0] : arguments;
	for (var i=0; i < argArray.length; i++)
	{
		var indexNum = cacheObj.length;
		cacheObj[indexNum] = new Image();
		cacheObj[indexNum].src = graphicsDir + argArray[i];
	}
}
		
// multi image swap
function switchImage()
{
	if(document.images)
	{
		for (var i=0; i < arguments.length; i=i+2)
		{
			document.images[arguments[i]].src = graphicsDir + arguments[i+1];
		}
	}
}