var dynamicLoading = {
  	css: function(path){
		if(!path || path.length === 0){
			throw new Error('argument "path" is required !');
		}
		var head = document.getElementsByTagName('head')[0];
		var link = document.createElement('link');
		link.href = path;
		link.rel = 'stylesheet';
		link.type = 'text/css';
		head.appendChild(link);
  	}
}
dynamicLoading.css('/ip/show.css');