function hideRecoverably(elem,scope){
	Ext.select(elem,scope).each(function(item){
		item.dom.originalHeight = item.getHeight();
		item.setHeight(0);
	});
}
function toggleRecoverably(item){
	if (item.getHeight() == 0) {
		item.setHeight(item.dom.originalHeight, {
			duration: .5,
			easing:'bounceBoth'
		});
	}else{
		//item.dom.originalHeight = item.getHeight();
		item.setHeight(0, {
			duration: .5,
			easing:'bounceBoth'
		});
	}	
}