/**
 * @author Alexander Farkas
 * v. 1.22
 */


(function($) {
	if(!document.defaultView || !document.defaultView.getComputedStyle){ // IE6-IE8
		var oldCurCSS = $.curCSS;
		$.curCSS = function(elem, name, force){
			if(name === 'background-position'){
				name = 'backgroundPosition';
			}
			if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){
				return oldCurCSS.apply(this, arguments);
			}
			var style = elem.style;
			if ( !force && style && style[ name ] ){
				return style[ name ];
			}
			return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);
		};
	}
	
	var oldAnim = $.fn.animate;
	$.fn.animate = function(prop){
		if('background-position' in prop){
			prop.backgroundPosition = prop['background-position'];
			delete prop['background-position'];
		}
		if('backgroundPosition' in prop){
			prop.backgroundPosition = '('+ prop.backgroundPosition;
		}
		return oldAnim.apply(this, arguments);
	};
	
	function toArray(strg){
		strg = strg.replace(/left|top/g,'0px');
		strg = strg.replace(/right|bottom/g,'100%');
		strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");
		var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);
		return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]];
	}
	
	$.fx.step. backgroundPosition = function(fx) {
		if (!fx.bgPosReady) {
			var start = $.curCSS(fx.elem,'backgroundPosition');
			if(!start){//FF2 no inline-style fallback
				start = '0px 0px';
			}
			
			start = toArray(start);
			fx.start = [start[0],start[2]];
			var end = toArray(fx.end);
			fx.end = [end[0],end[2]];
			
			fx.unit = [end[1],end[3]];
			fx.bgPosReady = true;
		}
		//return;
		var nowPosX = [];
		nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];
		nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];           
		fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1];

	};
})(jQuery);

/*
 * jQuery Mousestop Event v1.0
 * http://richardscarrott.co.uk/posts/view/jquery-mousestop-event
 *
 * Copyright (c) 2010 Richard Scarrott
 * W/ thanks to Ben Alman for his decent jQuery special event API write up:
 * http://benalman.com/news/2010/03/jquery-special-events/
 *
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Requires jQuery v1.3+
 *
 */

(function($) {
	// public vars
	$.mousestopDelay = 50;

	// special event
	$.event.special.mousestop = {
		setup: function(data) {
			$(this).data('mousestop', {delay: data})
				   .bind('mouseenter.mousestop', mouseenterHandler)
				   .bind('mouseleave.mousestop', mouseleaveHandler);
		},
		teardown: function() {
			$(this).removeData('mousestop')
			       .unbind('.mousestop');
		}
	};

	// private methods
	function mouseenterHandler() {
		if (typeof this.timeout === 'undefined') {
			this.timeout = null;
		}
		
		var elem = $(this),
			data = elem.data('mousestop'),
			delay = data.delay || $.mousestopDelay;

		elem.bind('mousemove.mousestop', function() {
			clearTimeout(this.timeout);
			this.timeout = setTimeout(function() {
				elem.trigger('mousestop');
			}, delay);
		});
	};
	
	function mouseleaveHandler() {
		var elem = $(this);
		elem.unbind('mousemove.mousestop');
		clearTimeout(this.timeout);
	};

	// shorthand alias
	$.fn.mousestop = function(data, fn) {
		if (fn == null) {
			fn = data;
			data = null;
		}

		return arguments.length > 0 ? this.bind('mousestop', data, fn) : this.trigger('mousestop');
	};
})(jQuery);