//function GE(a){return document.getElementById(a);}
function $(s){return typeof s == 'object'?s:document.getElementById(s);}
function GE(s){return typeof s == 'object'?s:document.getElementById(s);}

function myAddPanel(title,url,desc) { 
	if ((typeof window.sidebar == 'object') && (typeof window.sidebar.addPanel == 'function')){ 
		window.sidebar.addPanel(title,url,desc); 
	}else{ 
		window.external.addFavorite(url,title); 
	} 
} 

function setHomepage(url){
	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( "该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入\"about:config\",然后将项\"signed.applets.codebase_principal_support\"值该为\"true\"" ); 
			}
		}
		var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
		prefs.setCharPref('browser.startup.homepage',url);
	}
}
//搜索
function keywords_on(a){
	if(a.value=="请输入关键词") a.value="";
}
function keywords_off(a){
	if(a.value=="") a.value = "请输入关键词";
}

function Search_act(){
	if(document.formS.keywords.value.replace(/(^\s*)/g,"")==''||document.formS.keywords.value=='请输入关键词'){
		alert ("请输入关键词");
		document.formS.keywords.focus();
		return false;
	}
}
//表单
function cR(r){
	var n = 0;
	for(var i=0;i<r.length;i++) if(r[i].checked == true) n++;
	if(n==0){
		return false;
	}else{
		return true;
	}
}
function inp_on(a){
	a.className = "inp2";
}
function inp_off(a){
	a.className = "inp1";
}
function inp2_on(a){
	a.className = "inp4";
}
function inp2_off(a){
	a.className = "inp3";
}
//资讯
function nav(s){
	$('nav'+s).className = "navOn";
}