返回顶部的jquery插件

 

Easy Peasy

Download the minified version of the plugin, include it after jQuery and:

<script> jQuery(document).ready(function(){ jQuery.goup(); }); </script> 带参数的：点击下载此文件 
<script type="text/javascript">
        $(document).ready(function () {
            $.goup({
                trigger: 100,
                bottomOffset: 50,
                locationOffset: 70,
containerColor: '#990000',
                title: '返回顶部',
                titleAsText: false
            });
        });
    </script>

Demo

Yeah! You can see it in action on this page. If you scroll down, you can see, on the bottom right, the magic!

Options

Name	Description	Type	Default
location	On which side the button will be shown ("left" or "right")	String	right
locationOffset	How many pixel the button is distant from the edge of the screen, based on the location setted	Integer	20
bottomOffset	How many pixel the button is distant from the bottom edge of the screen	Integer	10
containerRadius	Let you transform a square in a circle (yeah, it's magic!)	Integer	10
containerClass	The class name given to the button container	String	goup-container
arrowClass	The class name given to the arrow container	String	goup-arrow
containerColor	The color of the container (in hex format)	String	#000
arrowColor	The color of the arrow (in hex format)	String	#fff
trigger	After hoiw many scrolled down pixels the button must be shown (bypoassed by alwaysVisible)	Integer	500
entryAnimation	The animation of the show and hide events of the button ("slide" or "fade")	String	fade
alwaysVisible	Set to true if u want the button to be always visible (bypass trigger)	Boolean	false
goupSpeed	The speed at which the user will be brought back to the top ("slow", "normal" or "fast")	String	slow
hideUnderWidth	The threshold of window width under which the button is permanently hidden	Integer	500
title	A text to show on the button mouse hover	String	''
titleAsText	If true the hover title becomes a true text under the button	Boolean	false
titleAsTextClass	The class name given to the title text	String	goup-text
zIndex	Set the z-index	Integer	1

 点击下载

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