add custom search to browser

add_custom_search

<a href="javascript:addOpenSearch();">Add search</a>

custom_search

function addOpenSearch(name,ext,cat,pid,meth){                                                                                                                                                      
	if (
	   (typeof window.external == "object") && 
	   ((typeof window.external.AddSearchProvider == "unknown") || (typeof window.external.AddSearchProvider == "function"))
	) {                                                                                                   
		if ((typeof window.external.AddSearchProvider == "unknown") && meth == "p") {                                                                                                                                         
				alert("This plugin uses POST which is not currently supported by InternetExplorer's implementation of OpenSearch.");                                   
		} else {                                                                                                                                               
			window.external.AddSearchProvider(                                                                                                                     
			"http://path/to/xml");                                                                                                                       
		}                                                                                                                                                      
	} else {                                                                                                                                               
		window.location="url/after/error";                                                                                                                      
	}                                                                                                                                                      
}

property

<?xml version="1.0" encoding="utf8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
        <ShortName>Title your search</ShortName>
        <Description>Description your search</Description>
        <Contact>your email</Contact>
        <Url type="text/html" template="http://your.site/?search_query={searchTerms}" />
        <LongName>Long name your search</LongName>
        <Image height="64" width="64" type="image/png">http://your.site/images/img/favicon.gif</Image>
        <Image height="16" width="16" type="image/vnd.microsoft.icon">http://your.site/favicon.ico</Image>
        <Developer>who make it</Developer>
        <Attribution></Attribution>
        <SyndicationRight>open</SyndicationRight>
        <AdultContent>false</AdultContent>
        <Language>ru-ru</Language>
        <OutputEncoding>utf8</OutputEncoding>
        <InputEncoding>utf8</InputEncoding>
</OpenSearchDescription>