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1. Add Script in HEAD section of your web page
<script type=’text/javascript’>
function errorMsg(){
alert(“Firefox, Mozilla or Netscape 6 is required to install the Healthline search plug-in.”);
}
function addEngine(name,cat,type) {
if ((typeof window.sidebar == “object”) && (typeof
window.sidebar.addSearchEngine == “function”))
{
//cat=”Web”;
//cat=prompt(‘In what category should this engine be installed?’,'Web’)
window.sidebar.addSearchEngine(
“http://www.healthline.com/plugins/healthline_search.src”,
“http://www.healthline.com/images/healthline_search.gif”,
name,
cat );
}
else
{
errorMsg();
}
}
</script>
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2. Add Link on your page:

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<input value=”Add Healthline to Firefox” onclick=”addEngine(‘Healthline Search Engine’,'Medical Search Engine’,0)” type=”button”>
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3. Create file: http://www.healthline.com/plugins/healthline_search.src
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<search version=”1.1″
name=”Healthline”
description=”Healthline Medical Search”
action=”http://www.healthline.com/search”
searchForm=”http://www.healthline.com”
method=”GET” >
<input name=”q1″ user>
<input name=”source” value=”firefox”>
</search>

<browser
update=”http://www.healthline.com/plugins/healthline_search.src”
updateIcon=”http://www.healthline.com/images/healthline_search.gif”
updateCheckDays=”3″>

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User would get the prompt to install add-on wen user clicks on the link on your page. also the plugin would try to update itself after every 3 days