(function($) {    $.fn.fixedSidebar = function(options) {        var defaults = {            width: 100,            height: 20,			horizontalType: 'left', /*left,right*/			horizontalValue:20,			verticalType:'top', /*top,bottom*/			verticalValue:30,			berth:'browser',  /*browser,wrap*/			wrapWidth:960,			isHide:false,    			scrollTop:120,			content:''        };        var opts = $.extend(defaults, options);        var floatBlock = 'floatBlock_' + Math.round(Math.random() * 10000);		        var positiontype = 'undefined' == typeof(document.body.style.maxHeight) ? "absolute" : "fixed";        if (opts.horizontalType != 'left' && opts.horizontalType != 'right') {            opts.horizontalType = 'left';        }		if (opts.verticalType != 'top' && opts.verticalType != 'bottom') {            opts.verticalType = 'top';        }		var horizontalValue=0;		var verticalValue=0;				setHorizontalValue();		setVerticalValue();		        $("body").append('
     
      '+opts.content+'
     
');				if(opts.isHide) { $("#" + floatBlock + "").hide(); }				$(window).scroll(function() {			if ('undefined' == typeof(document.body.style.maxHeight)) {				setVerticalValue();					$("#" + floatBlock + "").css('top', verticalValue + "px");			}			if(opts.isHide)			{				if($(window).scrollTop()>opts.scrollTop) 					{ $("#" + floatBlock + "").slideDown(); }				else 					{ $("#" + floatBlock + "").slideUp(); }			}		})		        $(window).resize(function() {			setHorizontalValue();			$("#" + floatBlock + "").css(opts.horizontalType, horizontalValue + "px");			setVerticalValue();			$("#" + floatBlock + "").css('top', verticalValue + "px");        })				function setHorizontalValue()		{ 			horizontalValue = opts.berth == 'wrap' ? ($(window).width()-opts.wrapWidth)/2-opts.width-opts.horizontalValue : opts.horizontalValue; 		}				function setVerticalValue()		{			if ('undefined' == typeof(document.body.style.maxHeight)) {				verticalValue = opts.verticalType == 'top' ? $(window).scrollTop()+opts.verticalValue : $(window).scrollTop()+$(window).height()-opts.verticalValue;			}			else			{				verticalValue = opts.verticalType == 'top' ? opts.verticalValue : $(window).height()-opts.verticalValue;			}		}    };})(jQuery)