function $(id){
	return document.getElementById(id);
}
function setMsg(str){
	$("msg").innerHTML = str;
}
function onsub(){
	var ff = document.ff;
	ff.user.value = fTrim(ff.user.value);
	if(ff.user.value==""){
		setMsg("请输入你的用户名？");
		ff.user.focus();
		return false;
	}
	
	if(ff.pass.value==""){
		setMsg("请输入你的密码？");
		ff.pass.focus();
		return false;
	}
	//setMsg("正在登录...");
	ff.username.value= ff.user.value;
	ff.password.value=ff.pass.value;
	if(g_domain=="126.com"){//126逍遥
		writeSessionCookie("ntes_mail_firstpage","normal","126.com");
		writeEternalCookie("logType","dp","126.com");
		writeEternalCookie("nts_mail_user",ff.user.value,"126.com");
		writeEternalCookie("NETEASE_SSN",ff.user.value,"126.com");
	}else{//163极速旧版
		writeSessionCookie("ntes_mail_firstpage","normal","163.com");
		writeEternalCookie("logType","js","163.com");
		writeEternalCookie("nts_mail_user",ff.user.value,"163.com");
		writeEternalCookie("NETEASE_SSN",ff.user.value,"163.com");
	}
	return true;
}
function writeSessionCookie(name,value,domain){
	var cookie = name+"=" + value + ";domain=" + domain +";path=/";
	window.document.cookie = cookie;
}

function writeEternalCookie(name,value,domain){
	var cookie = name+"=" + value + ";expires=" + new Date(2099,12,31).toGMTString() + ";domain=" + domain+";path=/";;
	window.document.cookie = cookie;
}

function fTrim(str)
{
	return str.replace(/(^\s*)|(\s*$)/g, ""); 
}

function onDomainCh(){
	var newurl = window.location.href;
	if($("domain").value=="126.com"){
		newurl = newurl.replace(/1[236]{2}\.com/g,"126.com");
	}else{
		newurl = newurl.replace(/1[236]{2}\.com/g,"163.com");
	}
	window.location.replace(newurl);
}

var ImgSwitcher = new function(){
	var imgs_arr=new Array();
	imgs_arr.push("http://mimg.163.com/jifen/annual2006/images/2dj_c.gif");
	imgs_arr.push("http://mimg.163.com/jifen/annual2006/images/2dj.gif");
	imgs_arr.push("http://mimg.163.com/jifen/annual2006/images/2dj_p.gif");
	imgs_arr.push("http://mimg.163.com/jifen/annual2006/images/2dj_u.gif");
	imgs_arr.push("http://mimg.163.com/jifen/annual2006/images/2dj_t.gif");
	var i=-1;
	function setup_chimg(){
		i = (i+1)%5;
		var url = imgs_arr[i];
		$("ad_ch_img").src=url;
		setTimeout(setup_chimg,3000);
	}
	this.start=setup_chimg;
}