Htk.BarButton = new Class
({
	Extends: Htk.Button
	,Tag: 'htk-bar-button'
	,Properties:
	{
		icon:
		{
			type: String
			,set: function (x)
			{
				this.img.src = 'image/icon/dark/'+ x +'.svg';
			}
			
		}
	}
	
	,_showText: true
});