www.gusucode.com > （自适应手机版）铝合金网站源码 织梦铝业装修建材类响应式模板（demo318）源码程序 > （自适应手机版）铝合金网站源码 织梦铝业装修建材类响应式模板（demo318）源码程序/www2/style/js/jquery.fixed.js

    /* 









 * jQuery Fixed Plugins 1.5.1









 * Author:









 * Url:









 * Data









 *









 *  Update Log:









 * 









 *  Status       Date            Name      Version           BUG-Description









 *  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------









 *  Created      2012-08-15    	 Ru	       1.0               None









 









 *  Modified     2012-09-02      Ru        1.4.1             修复了webkit内核浏览器右边浮动有一定距离的bug(负外边距),增加了悬浮靠边的定位、是否显示关闭按钮、是否垂直居中定位









 









 *  Modified     2013-01-02    	 Ru	       1.5.1             增加了垂直方向的位置;把核心函数(关闭、展开、定位、最小化)重构,修复了webkit内核浏览器右边浮动最小化时没有显示出来









 *  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/



















;(function($){









    $.fn.fixed = function(options){









        var defaults = {









			top    			: null,









			halfTop     	: false,









			durationTime 	: 500









        }









        var options = $.extend(defaults, options);		



















        this.each(function(){			









           









			var thisBox = $(this),









				contentHeight = thisBox.height(),









				boxTop = null,









				defaultTop = thisBox.offset().top,









				halfTop = ($(window).height() - contentHeight)/2









				;









				









			if(options.top == null){









				boxTop = defaultTop;









			}else {









				boxTop = options.top;









			}









			if( options.halfTop ) {	boxTop = halfTop; }









						









			thisBox.css("top", boxTop);









						









						









			//核心scroll事件			









			$(window).bind("scroll",function(){









				var offsetTop = boxTop + $(window).scrollTop() + "px";









	            thisBox.animate({









					top: offsetTop









	            },{









	            	duration: options.durationTime,	









	                queue: false









	            });









			});









			









				









        });	//end this.each



















    };









})(jQuery);