coords Example JavaScript (JS): HTML DOM Objects – Anchor Object – coords Example JavaScript (JS)
coords Example JavaScript (JS): HTML DOM Objects – Anchor Object – coords Example JavaScript (JS)
Purpose: – Illustrates the JavaScript syntax for the Anchor Object coords Property .
Prerequistes:
- Install Visual Web Developer 2008
Syntax: object.coords=coords – Allows you to retrieve or assign coords for links in an image map.
Restrictions: None
Notes:
- You can build your own library of syntax examples by using same web site over and over and just add new files to it.
Instructions:
- Use Visual Web Developer 2008
- Create new web site;
- Click File/New Web Site
- Select ASP.NET Website Template
- Select C-Sharp for coordsuage
- name of Web Site could be JavaScript_Syntax.
- Add New folder named “HTMLDOMObjects”
- Right-click project name in solution explorer;
- add new folder;
- name of folder should be: HTMLDOMObjects
- Add New subfolder to “HTMLDOMObjects” folder named “DOMAnchor”
- Right-click folder named “HTMLDOMObjects” in solution explorer;
- add new folder;
- name of folder should be: DOMAnchor
- Add New subfolder to “DOMAnchor” subfolder named “AnchorObjectProperties”
- Right-click subfolder named “DOMAnchor” in solution explorer;
- add new folder;
- name of folder should be: AnchorObjectProperties
- Add HTML Page Named coords to AnchorObjectProperties subfolder
- Right-click AnchorObjectProperties subfolder;
- add new item;
- Select HTML Page
- HTML Page name should be coords
- Click on copy code in code below to copy code into HTML Page coords.htm
- Right-click on HTML page coords.htm and select view in browser
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>IdealProgrammer.com: coords</title>
<!--
***************************************************
* This example is from http://idealprogrammer.com *
***************************************************
-->
</head>
<body>
<a href="http://idealprogrammer.com">Ideal Programmer</a><br /><br />
<img src ="http://idealprogrammer.com/wp-photos/goldbottle.jpg" width="200" height="200" alt="Planets"
usemap ="#goldmap" /><br /> <br />
<map name="goldmap" id="goldmapid">
<area id="accessKey" shape="rect" coords="0,0,100,100" href="accessKey.htm" alt="accessKey" />
<area id="charset" shape="rect" coords="100,0,200,100" href="charset.htm" alt="charset" />
</map>
<script type="text/javascript">
//*****************************************************
// DOM Objects
//*****************************************************
//*****************************************************
// *** Anchor Object Property ***
//*****************************************************
//*****************************************************
// coords
//*****************************************************
// SYNTAX:
// anchorObject.coords=coordinates Allows you to access a comma-separated list
// of a link in an image map.
// Two ways to retrieve coords
// 1. GetElementsByTagName
myObject = document.getElementsByTagName('area')[0];
document.write("accessKey - Using getElementsByTagName : " + myObject.coords);
document.write("<br />");
// 2. GetElementById
document.write("charset - Using getElementById: ");
document.write(document.getElementById('charset').coords);
document.write("<br /><br />");
// Two ways to assign coords
// 1. GetElementById
myFirstLink = document.getElementById('accessKey');
myFirstLink.coords = "0,0,90,90";
document.write("<br />accessKey charset changed to 0,0,90,90: ", myFirstLink.coords);
// 2. GetElementsByTagName
mySecondLink = document.getElementsByTagName('area')[1];
mySecondLink.coords = "105,5,200,100";
document.write("<br />charset changed to 105,5,200,100: ", mySecondLink.coords)
</script>
</body>
</html> |
