function $(id){return document.getElementById(id);}
function show(o){document.getElementById(o).style.display="block";}
function hide(o){document.getElementById(o).style.display="none";}
function geturl(url,id){
var http=false;
$(id).innerHTML='<span class="loading">&nbsp;&nbsp;</span>';
if(window.XMLHttpRequest){http=new XMLHttpRequest();if(http.overrideMimeType){http.overrideMimeType('text/plain');}}else if(window.ActiveXObject){try{http=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){}}}
if(!http){alert('Cannot send an XMLHTTP request');return false;}
http.onreadystatechange=function(){if(http.readyState==4){$(id).innerHTML=http.responseText;}}
http.open("get", url, true);
http.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
http.send(null);
}

function AddFavorite(sURL, sTitle) 
{ 
	try 
	{ 
		window.external.addFavorite(sURL, sTitle); 
	} 
	catch (e) 
	{ 
		try 
		{ 
			window.sidebar.addPanel(sTitle, sURL, ""); 
		} 
		catch (e) 
		{ 
		alert("请点击浏览器收藏夹进行添加"); 
		} 
	} 
}
function setHomePage(url){
    if (window.sidebar)
    {
        try { 
           netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
        } 
        catch (e) 
        {  
           alert("此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n然后将[signed.applets.codebase_principal_support]设置为'true'"); 
        } 
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage',url);

    }
}