function $(){return document.getElementById?document.getElementById(arguments[0]):eval(arguments[0]);}
String.prototype.trim = function(){return (this.replace(/^\s*|\s*$/g,""));}
//��¼״̬
function login_in(){
	var username=$('UserName').value.trim();
	var password=$('Password').value.trim();
	if(username==''){
		alert('Username or Email can not be null.');
		$('UserName').focus();
		return;
	}
	if(password==''){
		alert('Password can not be null.');
		$('Password').focus();
		return;
	}
	//YAjax.request('POST', 'login.php', {UserName:username,Password:password}, login_suc, login_out);
	request('we',"http://www.hithere.com/login_in.php?Password="+password+"&UserName="+username);
    //loginTimer = setTimeout(null,500); 
	
}

function fun_result_do(txt)
{
   login_suc(txt);
}

function request(id,url){ 
    oScript = document.getElementById(id); 
    var head = document.getElementsByTagName("head").item(0); 
    if (oScript) { 
        head.removeChild(oScript); 
    } 
    oScript = document.createElement("script"); 
    oScript.setAttribute("src", url); 
    oScript.setAttribute("id",id); 
    oScript.setAttribute("type","text/javascript"); 
    oScript.setAttribute("language","javascript"); 
    head.appendChild(oScript); 
    return oScript; 
} 


function login_suc(txt){
	txt=txt.trim();//eval("("+txt+")");
	var result=txt.split(':');
	if(result[0]=='ok'){
		var obj_login=$('login_content');
		var obj_unlogin=$('unlogin_content');
		obj_login.style.display='';
		obj_unlogin.style.display='none';
		$('loginname').innerHTML=result[1];
		$('divFbunlink').style.display='none';
		
	}else{
		alert('Wrong username or password.')
		login_out();
	}
}
//δ��¼״̬
function login_out(){
	var obj_login=$('login_content');
	var obj_unlogin=$('unlogin_content');
	if(obj_unlogin){
		obj_unlogin.style.display='';
	}	
	if(obj_login){
		obj_login.style.display='none';
	}	
}

function check_suc(txt){
	txt=txt.trim();//eval("("+txt+")");
	var result=txt.split(':');
	if(result[0]=='fbok'){
		var obj_login=$('login_content');
		var obj_unlogin=$('unlogin_content');
		obj_login.style.display='';			
		var obj_divFbunlink=$('divFbunlink');
		obj_divFbunlink.style.display='';
		$('loginname').innerHTML=result[1];
		if(obj_unlogin){
		obj_unlogin.style.display='none';
		}

	}else if(result[0]=='ok')	{
		
		var obj_login=$('login_content');
		var obj_unlogin=$('unlogin_content');
		obj_login.style.display='';
		if(obj_unlogin){
		obj_unlogin.style.display='none';
		}
		$('loginname').innerHTML=result[1];		

	}else{
		login_out();
	}
}
//检测登录用ajax去验证
function back_check_login(){
	YAjax.request('GET', 'getlogininfo.php', null, check_suc, login_out);
}