function strDateTime(str)
{
var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/; 
var r = str.match(reg); 
if(r==null)return false; 
var d= new Date(r[1], r[3]-1,r[4]); 
return (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]);
}
function fsubmit()
{
var sform= document.sf;
var mkey=sform.key.value;
if(sform.stype.value=="0"){
sform.action="Book.asp?newsType=1&key="+mkey;
sform.submit();
}
else if(sform.stype.value=="1"){
sform.action="News.asp?newsType=1&key="+mkey;
sform.submit();
}
}
function check(){
	var mm=document.form_reg;
	var cdate=mm.userdate.value;
	if(mm.username.value==""){
		alert("对不起,姓名不能为空!");
		mm.username.focus();
		return false;
	}
	else if(!strDateTime(cdate))
	{
		alert("对不起,出生日期格式不对!");
		mm.userdate.focus();
		return false;
	}
	else if(mm.userCID.value==""){
		alert("对不起!身份证号不能为空");
		mm.userCID.focus();
		return false;
	}
	else if(mm.usermobile.value=="" && mm.usertel.value==""){
		alert("对不起,手机或电话至少一个不能空!");
		mm.usermobile.focus();
		return false;
	}else if(mm.useraddress.value==""){
		alert("对不起!地址不能为空");
		mm.useraddress.focus();
		return false;
	}else if(mm.useremail.value==""){
		alert("对不起!邮箱不能为空");
		mm.useremail.focus();
		return false;
	}else if(mm.listId.value==""){
		alert("对不起!专业不能为空");
		mm.listId.focus();
		return false;
	}
}