function ajaxchkemail(){
	var xmlhttp = createHttpRequest();
	var email = $$('email').value;
	$$('e_4').innerHTML = "正在检测E-Mail地址...";
	if(email.strtrim().length <6 || email.indexOf('@') == -1 || email.indexOf('.') == -1){
		$$('e_4').innerHTML = showpic()+"请输入正确的邮箱地址。";
		$$('e_4').className = "c_red";
	}else{
		xmlhttp.open("post","/user/ajax_chksame.php",true);
		xmlhttp.onreadystatechange = function(){
			if(xmlhttp.readyState == 4){
				if(xmlhttp.status == 200){
					if(xmlhttp.responseText == "true"){
						$$('e_4').innerHTML = showpic()+"E-Mail已存在";
						$$('e_4').className = "border_box";
					}else{
						$$('e_4').innerHTML = "该E-Mail可以注册";
						$$('e_4').className = "c_blue";
					}
				}
			}
		}
		xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
		xmlhttp.send("email="+email+"&act=ajaxchkemail");
	}
}
function chg_area(){
	var xmlhttp = createHttpRequest();
	var _arr = new Array(); 
	var province_id = $$('province').value;
	xmlhttp.open("get","/account/ajax_proc.php?province_id="+province_id+"&act=chg_area",false);
	xmlhttp.onreadystatechange = function(){
		if(xmlhttp.readyState == 4){
			if(xmlhttp.status == 200){
				//alert(xmlhttp.responseText);
				$$('city').length=0;
				var _s = unescape(xmlhttp.responseText);
				_arr = _s.split(',');
				for(var i=0;i<_arr.length-1;i+=2){
					with($$('city')){
						options[options.length] = new Option(_arr[i+1],_arr[i]);
					}
				}
			}else{
				alert("ERROR,no status");
			}
		}
	}
	xmlhttp.send(null);
}

function highlight(id){
	for(i =1;i<5;i++){
		$$('e_'+i).className = "c_gray";
		if(id == 'e_'+i){
			$$(id).className = "border_box";
		}
	}
}
function showpic(){
	return '<img name="" src="../images/no.jpg" width="20" height="17" alt="" align="absbottom"/>';
}
function checkreg(o){
	var cansub = true;
	var nick_name = o.nick_name;
	if(nick_name.value.strtrim().length <1){
		e_1.innerHTML = showpic()+"请输入您的昵称。";
		e_1.className = "c_red";
		cansub = false;
		nick_name.focus();
	}else{
		e_1.innerHTML = "";
		e_1.className = "";
	}
	var pwd = o.pwd;
	var pwd2 = o.pwd2;
	if(pwd.value != pwd2.value){
		e_3.innerHTML=showpic()+"确认密码不一致！";
		e_3.className="c_red";
		cansub = false;
		pwd2.focus();
	}else{
		e_3.innerHTML="";
		e_3.className="";
	} 
	var pwd = o.pwd;
	if(pwd.value.strtrim().length <1){
		e_2.innerHTML = showpic()+"密码不能为空。";
		e_2.className = "c_red";
		cansub = false;
		pwd.focus();
	}else if(pwd.value.strtrim().length <6 || pwd.value.strtrim().length >20){
		e_2.innerHTML = showpic()+"密码长度为6 -20位。";
		e_2.className = "c_red";
		cansub = false;
		pwd.focus();
	}else{
		e_2.innerHTML = "";
		e_2.className = "";
	}
	var email = o.email;
	if(email.value.strtrim().length <1){
		e_4.innerHTML = showpic()+"E-Mail不能为空。";
		e_4.className = "c_red";
		cansub = false;
		email.focus();
	}else if(email.value.indexOf('@') == -1 || email.value.indexOf('.') == -1){
		e_4.innerHTML = showpic()+"E-Mail格式不正确";
		e_4.className = "c_red";
		cansub = false;
		email.focus();
	}else{
		e_4.innerHTML = "";
		e_4.className = "";
	}
	if(cansub){
		o.s1.disabled = true;
		return true;
	}else{
		return false;
	}
}