JS插件overlib用法实例详解

本文实例讲述了overlib用法。分享给大家供大家参考，具体如下：
overLIB 是一个生成提示框与弹出菜单等页面效果的一段非常优秀的JS代码。
它可以简单的通过设置一些参数或命令来改变弹出页面的款式、皮肤与形状,不但如此，它还提供了非常简单的扩展功能，来足客户的不同需求。
overLIB 使用非常的简单。
一、在<head></head> 标签内添加：复制代码代码如下:<script type="text/javascript" src="overlib.js"><！-- overLIB （c） Erik Bosrup --></script>
二、在<body></body>标签内添加：复制代码代码如下:<div id="overDiv" style="position:absolute; visibility:hidden; z-index:1000;"></div> 4.10以上的版本可省略此步
三、生成两种不同款式（popup与sticky）的弹出页面

<a href="javascript:void（0）;" onmouseover="return overlib（"这是一个popup."）;" onmouseout="return nd（）;">popup示例</a><a href="javascript:void（0）;" onmouseover="return overlib（"这是一个sticky",STICKY, MOUSEOFF）;" onmouseout="return nd（）;">stick示例 </a>

四、命令与参数
popup

Attribute Name	Type	Required	Default	Description
text	string	Yes	n/a	the text/html to display in the popup window
trigger	string	No	onMouseOver	What is used to trigger the popup window. Can be one of onMouseOver or onClick
sticky	boolean	No	false	Makes the popup stick around until closed
caption	string	No	n/a	sets the caption to title
fgcolor	string	No	n/a	color of the inside of the popup box
bgcolor	string	No	n/a	color of the border of the popup box
textcolor	string	No	n/a	sets the color of the text inside the box
capcolor	string	No	n/a	sets color of the box"s caption
closecolor	string	No	n/a	sets the color of the close text
textfont	string	No	n/a	sets the font to be used by the main text
captionfont	string	No	n/a	sets the font of the caption
closefont	string	No	n/a	sets the font for the "Close" text
textsize	string	No	n/a	sets the size of the main text"s font
captionsize	string	No	n/a	sets the size of the caption"s font
closesize	string	No	n/a	sets the size of the "Close" text"s font
width	integer	No	n/a	sets the width of the box
height	integer	No	n/a	sets the height of the box
left	boolean	No	false	makes the popups go to the left of the mouse
right	boolean	No	false	makes the popups go to the right of the mouse
center	boolean	No	false	makes the popups go to the center of the mouse
above	boolean	No	false	makes the popups go above the mouse. NOTE: only possible when height has been set
below	boolean	No	false	makes the popups go below the mouse
border	integer	No	n/a	makes the border of the popups thicker or thinner
offsetx	integer	No	n/a	how far away from the pointer the popup will show up, horizontally
offsety	integer	No	n/a	how far away from the pointer the popup will show up, vertically
fgbackground	url to image	No	n/a	defines a picture to use instead of color for the inside of the popup.
bgbackground	url to image	No	n/a	defines a picture to use instead of color for the border of the popup. NOTE: You will want to set bgcolor to "" or the color will show as well. NOTE: When having a Close link, Netscape will re-render the table cells, making things look incorrect
closetext	string	No	n/a	sets the "Close" text to something else
noclose	boolean	No	n/a	does not display the "Close" text on stickies with a caption
status	string	No	n/a	sets the text in the browsers status bar
autostatus	boolean	No	n/a	sets the status bar"s text to the popup"s text. NOTE: overrides status setting
autostatuscap	string	No	n/a	sets the status bar"s text to the caption"s text. NOTE: overrides status and autostatus settings
inarray	integer	No	n/a	tells overLib to read text from this index in the ol_text array, located in overlib.js. This parameter can be used instead of text
caparray	integer	No	n/a	tells overLib to read the caption from this index in the ol_caps array
capicon	url	No	n/a	displays the image given before the popup caption
snapx	integer	No	n/a	snaps the popup to an even position in a horizontal grid
snapy	integer	No	n/a	snaps the popup to an even position in a vertical grid
fixx	integer	No	n/a	locks the popups horizontal position Note: overrides all other horizontal placement
fixy	integer	No	n/a	locks the popups vertical position Note: overrides all other vertical placement
background	url	No	n/a	sets image to be used instead of table box background
padx	integer,integer	No	n/a	pads the background image with horizontal whitespace for text placement. Note: this is a two parameter command
pady	integer,integer	No	n/a	pads the background image with vertical whitespace for text placement. Note: this is a two parameter command
fullhtml	boolean	No	n/a	allows you to control the html over a background picture completely. The html code is expected in the "text" attribute
frame	string	No	n/a	controls popups in a different frame. See the overlib page for more info on this function
timeout	string	No	n/a	calls the specified javascript function and takes the return value as the text that should be displayed in the popup window
delay	integer	No	n/a	makes that popup behave like a tooltip. It will popup only after this delay in milliseconds
hauto	boolean	No	n/a	automatically determine if the popup should be to the left or right of the mouse.
vauto	boolean	No	n/a	automatically determine if the popup should be above or below the mouse.

overLIB 可以接受任意个命令和参数。格式如下：命令[,"命令参数"]

<a href="javascript:void（0）;" onclick="return overlib（"This is a sticky with a caption. And it is centered under the mouse！", STICKY, CAPTION,"Sticky！", CENTER）;" onmouseout="nd（）;">Click here！</a>

五、 overlib的一些使用示例

<！DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><scriptlanguage="JavaScript" src="overlib.js"></script><html><head><metahttp-equiv="Content-Type" content="text/html; charset=gb2312"><title>无标题文档</title></head><body><ahref="#" onclick="return overlib（"使用overlib的命令", CAPTION, "这是Caption命令，就是生成头部",HAUTO）;"" onmouseout="return nd（）;">弹出测试</a><ahref="javascript:void（0）;" onmouseover="return overlib（"This is an ordinary popup.",CLOSECLICK）;" onmouseout="return nd（）;">here</a><ahref="javascript:void（0）;" onmouseover="return overlib（"This is what we call a sticky, since I stick around （it goes away if you move the mouse OVER and then OFF the overLIB popup--or mouseover another overLIB）.", STICKY, MOUSEOFF）;" onmouseout="return nd（）;">吸附性的提示框</a><ahref="javascript:void（0）;" onclick="return overlib（"This is a sticky with a caption. And it is centered under the mouse！", STICKY, CAPTION,"Sticky！",CENTER）;">含CAPTION的STICKY！</a><ahref="javascript:void（0）;" onclick="return overlib（"Setting size and posiztion！", STICKY, CAPTION,"Sticky！",HEIGHT, 100,WIDTH,120,LEFT）;">指定大小与位置弹出</a><ahref="javascript:void（0）;" onclick="return overlib（"Setting size and posiztion！", STICKY, CAPTION,"Sticky！",STATUS ,"Hello"）;">设置状态栏</a></body></html>

六、自定义overlib。overlib有三种方式可以实现自定义。
1、我们上面用过的通过输入不同命令来实现自定义。
2、修改overlib.js中的默认值来实现自定义
3、在引用的页面指定变量来实现自定义。
overlib点击此处本站下载。
希望本文所述对大家JavaScript程序设计有所帮助。