I have a map that you can click on locations to get information for that area and I would like to show that information in a Iframe on the same page when clicked
My page has this for the link now
`<AREA SHAPE="CIRCLE" COORDS="555,142,6" HREF="http://www.Page.com" TITLE="" />`
Any suggestions
The beauty of AJAX is that you don't really need an IFRAME to do this.
You've got a server that will return to you information about a certain area. Each of the AREA tags simply needs an onclick attribute that calls a JavaScript function to retrieve that information and display it in a location you set aside on your page.
Here is a sample HTML page that will retrieve information from the server using AJAX
<html>
<head>
<script type="text/javascript">
function getAreaInfo(id)
{
var infoBox = document.getElementById("infoBox");
if (infoBox == null) return true;
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState != 4) return;
if (xhr.status != 200) alert(xhr.status);
infoBox.innerHTML = xhr.responseText;
};
xhr.open("GET", "info.php?id=" + id, true);
xhr.send(null);
return false;
}
</script>
<style type="text/css">
#infoBox {
border:1px solid #777;
height: 400px;
width: 400px;
}
</style>
</head>
<body onload="">
<p>AJAX Test</p>
<p>Click a link...
<a href="info.php?id=1" onclick="return getAreaInfo(1);">Area One</a>
<a href="info.php?id=2" onclick="return getAreaInfo(2);">Area Two</a>
<a href="info.php?id=3" onclick="return getAreaInfo(3);">Area Three</a>
</p>
<p>Here is where the information will go.</p>
<div id="infoBox"> </div>
</body>
</html>
And here is the info.php that returns the information back to the HTML page:
<?php
$id = $_GET["id"];
echo "You asked for information about area #{$id}. A real application would look something up in a database and format that information using XML or JSON.";
?>
Hope this helps!
