JavaScript Study Series 3 case study: JavaScript Image Library

Source: Internet
Author: User

<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> untitled document </title>
</Head>
<Body>
<H1> Snapshots <Ul>
<Li>
<A href = "images/Chrysanthemum.jpg" onclick = "showPic (this); return false;" title = "A Chrysanthemum display"> Chrysanthemum </a>
</Li>
<Li>
<A href = "images/Desert.jpg" onclick = "showPic (this); return false;" title = "A Desert display"> Desert </a>
</Li>
<Li>
<! -- Call the showPic (this) method when you click. Here, this is the current node and return false: indicates that this link is not clicked. -->
<A href = "images/Hydrangeas.jpg" onclick = "showPic (this); return false;" title = "A Hydrangeas display"> Hydrangeas </a>
</Li>
<! -- Display the image below -->

<! -- Change the font by id -->
<P id = "description"> Choose an image. </p>
</Ul>

<Script src = "file. js"> </script>
</Body>
</Html>
 
JavaScript
Function showPic (whichpic ){
Var source = whichpic. getAttribute ("href ");
Var placeholder = document. getElementById ("placeholder ");
Placeholder. setAttribute ("src", source );
Var text = whichpic. getAttribute ("title ");
Var description = document. getElementById ("description ");
Description. firstChild. nodeValue = text;
}
 
ChildNodes: Get the array of Child Nodes
NodeType: Node Type
Element Node: 1
Attribute node: 2
Text node: 3
NodeValue: node Value
FirstChild: The first subnode
LastChild: Last subnode
From the xtcpcgx Column

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.