When reading emails from JAVA application, it returns content body in xhtml format. Following code can be used to convert xhtml tages to html.

org.jsoup.nodes.Document document = Jsoup.parseBodyFragment(xhtml);

document.outputSettings().escapeMode(Entities.EscapeMode.xhtml);

String str = document.body().html();

Avoid submitting form when enter key is pressed

Sometimes, you have to avoid submitting page when enter key is pressed. You need to add following style to  text box.

<input id="txtName" name="txtName" style="display: none;" type="text" />

Get map for latitude & longitude using Google Maps API

Google provides a FREE Java Script map API for longitude & latitude. Simple demonstration is given below. Position marker, mouse wheel zooming, Map view/Satelite view/Hybrid view controls are enabled in the example.

NOTE :- Map searching is commented.

<html>
<head>
<script type="text/javascript"
src="http://www.google.com/jsapi?key=ABCDEFG"></script>
<script type="text/javascript">
google.load("maps", "2");
// google.load("search", "1");

// Call this function when the page has been loaded

function initialize() {
var map = new google.maps.Map2(document.getElementById("map"));
map.setCenter(new google.maps.LatLng(7, 80), 13);
map.enableRotation();
map.addControl(new GOverviewMapControl());
map.enableDoubleClickZoom();
map.enableScrollWheelZoom();
map.addControl(new GMapTypeControl());

map.addControl(new GSmallMapControl());

var marker = new GMarker(new GLatLng(7, 80));
map.addOverlay(marker);
map.setMapType(G_SATELLITE_MAP);

// var searchControl = new google.search.SearchControl();
// searchControl.addSearcher(new google.search.WebSearch());
// searchControl.addSearcher(new google.search.NewsSearch());
// searchControl.draw(document.getElementById("searchcontrol"));
}

google.setOnLoadCallback(initialize);
</script>

</head>
<body>
<div id="map" style="width: 500px; height: 500px"></div>
<!-- <div id="searchcontrol"></div> -->
</body>

</html>

Reference :- http://code.google.com/apis/ajax/documentation/ 

Embed document in html

embed a HTML document
<object data="data/test.html" type="text/html" width="300" height="200">
alt : <a href="data/test.html">test.html</a>
</object>
embed a pdf document
<object data="data/test.pdf" type="application/pdf" width="300" height="200">
alt : <a href="data/test.pdf">test.pdf</a>
</object>
embed a wav document
<object type="audio/x-wav" data="data/test.wav" width="200" height="20">
<param name="src" value="data/test.wav">
<param name="autoplay" value="false">
<param name="autoStart" value="0">
alt : <a href="data/test.wav">test.wav</a>
</object>

Get radio button value in js

Suppose your radio button grop is "radiogroup".
function getradioSelection() {
var group=document.getElementsByName("radiogroup");
var grp='';
for(var k=0;k<group.length;k++){
if(group[k].checked){
grp=group[k].value;
}
return grp;
}
This method will return the selected radio button value.

Meta tag to refesh the page

This is the meta tag that is used to refresh the page.

<META HTTP-EQUIV=Refresh CONTENT='100; URL=index.php'>
Here, CONTENT='100 means time interval for a refresh.
URL is the page/url must be refreshed.