function checkuser(){
	var user = document.getElementById("user.name").value;
	if(user.length==0){document.all.errorname.innerHTML="请输入您要注册的用户名<br>";}
	else{
	jusercheck.src="../js/check.jsp?uid="+user;
	}
	}
	
	function checkemail(){
	var patn = /^[_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]*)*@[a-zA-Z0-9\-]+([\.][a-zA-Z0-9\-]+)+$/;
	var mail = document.getElementById("user.email").value;
	if(mail.length==0){document.all.erroremail.innerHTML="请输入您的邮箱地址<br>";}
	else{if(patn.test(mail)){jusercheck2.src="../js/check.jsp?mail="+mail;}
	else{document.all.erroremail.innerHTML="请填写正确的邮箱地址<br>";
	}}
	}
	
	function SetPwdMsg(){
        var pwd1 = document.getElementById("user.pwd").value;
        var pwd2 = document.getElementById("user.pwd2").value;
        var pwdmsg1 = document.all.errorpwd;
        var pwdmsg2 = document.all.errorpwd2;
        if(pwd1.length==0){pwdmsg1.innerHTML="请输入密码<br>";
        }else if (pwd1.length<6){pwdmsg1.innerHTML="请使用6位以上密码<br>";
        }else{pwdmsg1.innerHTML="";}

        if(pwd1!=pwd2 && pwd2.length>0){pwdmsg2.innerHTML="密码不一致。<br>";}else{pwdmsg2.innerHTML="";}
}

	function checkrand(){
	var rand = document.getElementById("user.rand").value;
	if(rand.length==0){document.all.errorrand.innerHTML="请输入验证码<br>";}
	else{document.all.errorrand.innerHTML="";}
	}
	
function on_submit(){
if(document.all.errorname.innerHTML.length>0||document.all.errorpwd.innerHTML.length>0||document.all.errorpwd2.innerHTML.length>0||document.all.erroremail.innerHTML.length>0||document.all.errorrand.innerHTML.length>0){
alert("请检查您的表单");
return false;}
}

function getimgcode(){
var getimagecode = document.getElementById("getcode");
getimagecode.src = "image.jsp?"+Math.random();	}