function getDomId(f){
	return document.getElementById(f);
}
function subLoginForm(){
	if(getDomId("username").value == "" || getDomId("password").value == ""){
		alert("请正确填写!");
		return false;
	}
	getDomId("loginsubmit").click();
}

//加入收藏
function AddFavorite(sURL, sTitle){
	try{
         window.external.addFavorite(sURL, sTitle);
    }catch (e){
        try{
            window.sidebar.addPanel(sTitle, sURL, "");
        }catch (e){
            alert("加入收藏失败，请使用Ctrl+D进行添加");
        }
    }
}

//设为首页
function SetHome(obj,vrl){
	try{
		obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
    }catch(e){
        if(window.netscape){
            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',vrl);
        }
    }
}