/**
 * mui layout(offset[,position,width,height...])
 * @param {type} $
 * @param {type} window
 * @param {type} undefined
 * @returns {undefined}
 */
(function($, window, undefined) {
	$.offset = function(element) {
		var box = {
			top : 0,
			left : 0
		};
		if ( typeof element.getBoundingClientRect !== undefined) {
			box = element.getBoundingClientRect();
		}
		return {
			top : box.top + window.pageYOffset - element.clientTop,
			left : box.left + window.pageXOffset - element.clientLeft
		};
	};
})(mui, window);