//

function addfavorite() {
	switch (getOs()) {
	case 1:
		window.external.addFavorite('http://www.sohuamu.com', '中国园艺网');
		break;
	case 2:
		window.sidebar.addPanel('中国园艺网', 'http://www.sohuamu.com', "");
		break;
	case 0:
		alert("抱歉,您的浏览器暂不支持该功能");
		break;
	}
}
function getOs() {
	if (navigator.userAgent.indexOf("MSIE") > 0)
		return 1;
	if (isFirefox = navigator.userAgent.indexOf("Firefox") > 0)
		return 2;
	if (isSafari = navigator.userAgent.indexOf("Safari") > 0)
		return 3;
	if (isCamino = navigator.userAgent.indexOf("Camino") > 0)
		return 4;
	if (isMozilla = navigator.userAgent.indexOf("Gecko/") > 0)
		return 5;
	return 0;
}

function setHome(obj) {
	try {
		obj.style.behavior = 'url(#default#homepage)';
		obj.setHomePage('http://www.sohuamu.com');
	} catch (e) {
		if (window.netscape) {
			try {
				netscape.security.PrivilegeManager
						.enablePrivilege("UniversalXPConnect");
			} catch (e) {
				alert("抱歉！您的浏览器不支持直接设为首页。请在浏览器地址栏输入“about:config”并回车然后将[signed.applets.codebase_principal_support]设置为“true”，点击“加入收藏”后忽略安全提示，即可设置成功。");
			}
			var prefs = Components.classes['@mozilla.org/preferences-service;1']
					.getService(Components.interfaces.nsIPrefBranch);
			prefs.setCharPref('browser.startup.homepage', vrl);
		}
	}
}

	function getNodeValue(obj,txt){
	var t=obj.getElementsByTagName(txt)[0];
	if(null==t){
		return "";
	}else{
		try{
		return t.firstChild.nodeValue;
		}catch(e){return "";}
	}
}
	
function getById(id){
	return document.getElementById(id);
}