//rollovers for html nav
var rolling = '1';
function preload() {
	if (document.images) {
		var dir = arguments['0'];
			for (var i=1; i<arguments.length; i++) {
				if (arguments[i] == 'done') rolling = "1";
				else {
					eval(arguments[i]+'_on = new Image()')
					eval(arguments[i]+'_on.src = dir+"'+arguments[i]+'_on.gif";')
					eval(arguments[i]+'_off = new Image()')
					eval(arguments[i]+'_off.src = dir+"'+arguments[i]+'_off.gif";')
			}
		}
	}
}
function rollIn(imgName)
	{
		if (document.images && rolling=="1")
		{
			document[imgName].src=eval(imgName + "_on.src");
		}
	}

function rollOut(imgName)
	{
		if (document.images && rolling=="1")
		{
			document[imgName].src=eval(imgName + "_off.src");
		}
	}