function addEngine(engine) {
    switch (engine){
        case 'arenabg':
            var xml = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/arenabg.xml";
		    var src = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/arenabg.src";
		    var bmp = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/arenabg.bmp";
		    var lbl = "ArenaBG";
            break;
        case 'zamunda':
            var xml = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/zamunda.xml";
    	    var src = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/zamunda.src";
		    var bmp = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/zamunda.bmp";
		    var lbl = "Zamunda.NET";
            break;
		case 'kaldata':
            var xml = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/kaldata.xml";
    	    var src = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/kaldata.src";
		    var bmp = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/kaldata.bmp";
		    var lbl = "Kaldata";
            break;
		case 'downloadbg':
            var xml = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/downloadbg.xml";
    	    var src = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/downloadbg.src";
		    var bmp = "http://www.bulgaria-web-developers.com/blog/wp-content/uploads/2008/12/downloadbg.bmp";
		    var lbl = "Download.BG";
            break;
        default:
            alert('Wrong parameter');
    }
    if (window.external && ("AddSearchProvider" in window.external)) {
        // Firefox 2 and IE 7, OpenSearch
        window.external.AddSearchProvider(xml);
    } else if (window.sidebar && ("addSearchEngine" in window.sidebar)) {
        // Firefox <= 1.5, Sherlock
        window.sidebar.addSearchEngine(src, bmp, lbl, "");
    } else {
       // No search engine support (IE 6, Opera, etc).
       alert("No search engine support");
    }
}