function changeClass(item, newclass) {
	var cell = document.getElementById(item);
	cell.className = newclass;
}


var oldswapsrc = new Array();  //required for swap()

function swap(image, on) {
    var img = document.images[image];
	if (on) {
        if (img.src != img.src.replace(/_off/gi, '_over')) {oldswapsrc[image] = img.src;}
		img.src = img.src.replace(/_off/gi, '_over');
	} else {
		if (oldswapsrc[image]) img.src = oldswapsrc[image];
	}
}

function preload() {
	args = preload.arguments;
	var preloaded = new Array();
	for (i=0;i<args.length;i++) {
		preloaded[i] = new Image();
		preloaded[i].src = args[i];
	}
}

var flashTour = function() {
	var newWind = window.open('/swf/tour.html', 'flashTour', 'width=700,height=400,resizable,scrollbars');
}