/**
 * Set Homepage Link plugin
 *
 * Copyright (c) 2009 Bibby Chung
 * Blog: http://bibby.be
 *
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * just for ie and firefox
 *
 * @example 
 * $('#Button1').click(function() {
 * 	$.setHomepage('http://google.com');
 * }); 
 */

jQuery.extend({
	setHomepage: function(url) {
		try {
			if (document.all) {
				document.body.style.behavior = 'url(#default#homepage)';
				document.body.setHomePage(url);

			} else if (window.sidebar) {
				if (window.netscape) {
					try {
						netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

					} catch (e) {
						alert("this action was aviod by your browser, if you want to enable,please enter about:config in your address line, and change the value of signed.applets.codebase_principal_support to true");
					}
				}

				var prefs = Components.classes['@mozilla.org/preferences-service;1']
				.getService(Components.interfaces.nsIPrefBranch);
				prefs.setCharPref('browser.startup.homepage', url);
			}

		} catch (e) {
		}

		return false;
	}
});