function fadeOut(el) {
	var attributes = { opacity: {to:0} };
	var obj = new $Anim(el, attributes, 0.5);
	obj.onComplete.subscribe(function(){
			//jslog.debug("calling fadeOut.onComplete()");
			$Dom.replaceClass(el, "show", "hide");
			//document.getElementById(el).style.display = "none";
			//jslog.info("set "+el+"'s class to 'hide'");
		});
	obj.animate();
}

function fadeIn(el) {
	var attributes = { opacity: {to:1} };
	var obj = new $Anim(el, attributes, 0.5);
	obj.onComplete.subscribe(function(){
			//jslog.debug("calling fadeIn.onComplete()");
			$Dom.replaceClass(el, "hide", "show");
			//document.getElementById(el).style.display = "block";
			//jslog.info("set "+el+"'s class to 'show'");
		});
	obj.animate();
}

function slideUp(el) {
	jslog.debug("el.style.height = "+$(el).style.height);
	var attributes = { height: {from:$(el).style.height, to:0, units:'pixels'} };
	var obj = new $Anim(el, attributes, 0.5);
	obj.onComplete.subscribe(function(){
			jslog.debug("calling slideUp.onComplete()");
		});
	obj.animate();
}

var expandToggle = true;
function windowExpand(el, img) {
	if(isMoz){
		var attributes = (expandToggle != true)?{ maxHeight: {to:320} }:{ maxHeight: {to:620} };
	}
	if(isIE){
		var attributes = (expandToggle != true)?{ height: {to:320} }:{ height: {to:620} };
	}
	jslog.error("el = "+el);
	jslog.error("attributes = "+attributes);
	var obj = new $Anim(el, attributes, 0.25, YAHOO.util.Easing.easeOut);
	obj.onComplete.subscribe(function(){
			jslog.debug("windowExpand.onComplete()");
			img.src = (expandToggle != true)?'images/menu_arrow_expand.gif':'images/menu_arrow_retract.gif';
			jslog.warning("img.src = "+img.src);
			expandToggle = (expandToggle != true)?true:false;
			jslog.debug("expandToggle = "+expandToggle);
		});
	obj.animate();
}

function scrollResponse(el) {
	var attributes = { scroll: { to: [0, 0] } };
	var obj = new YAHOO.util.Scroll(el, attributes, 0.5, YAHOO.util.Easing.easeOut);
	obj.onComplete.subscribe(function(){
			jslog.debug("scrollResponse complete");
		});
	obj.animate();
	jslog.warning("scrolling "+el+" to top");
	jslog.warning(obj.isAnimated());
}