String.prototype.Trim = function(){
		return this.replace(/(^\s*)|(\s*$)/g, "");
	}

	function check(userCode){
	    var element1 = document.getElementById(userCode).value;
		if(element1==""){
			alert("账户不能为空");
			document.getElementById(userCode).focus();
			return false;
		}
		if(element1.length>35){
			alert("账户不能超过25字节");
			document.getElementById(userCode).focus();
			return false;
		}
		return true;
	}
	
	function checkTel(userCode){
		var tel = document.getElementById(userCode).value;
		var pattern=/^1[0-9]{10}$/;
		if(pattern.test(tel.Trim())) 
		{	
			return true;
		}else{
			return false;
		}
	}
	
	function checkEmail(userCode){
		var email = document.getElementById(userCode).value;
		var str = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
		if(str.test(email.Trim())){
			return true;
		}else{
			return false;
		}
	}
	
	function checkLogin(userCode,password){
		if((document.getElementById(password).value)=='iBunny123'){
			alert("原始密码！为了使用安全，请更改。");
		}
		if(check(userCode)){
			if(checkTel(userCode)){
				document.getElementById("logintype").value="tel";
				return true;
			}else if(checkEmail(userCode)){
				document.getElementById("logintype").value="email";
				return true;
			}else{
				document.getElementById("logintype").value="code";
				return true;
			}
		}else{
			return false;
		}
	}
	
	function removeA(userCode){
		var code =document.getElementById(userCode).value;
		if(code=='账号/邮箱/手机'){
			document.getElementById(userCode).value="";
		}
	}