function validate(str){
var reg = /^(/d+)-(/d{1,2})-(/d{1,2}) (/d{1,2}):(/d{1,2}):(/d{1,2})$/;
var r = str.match(reg);
if(r==null) {alert("wrong");return false};
r[2]=r[2]-1;
var d= new Date(r[1], r[2],r[3], r[4],r[5], r[6]);
if(d.getFullYear()!=r[1]){alert("wrong");return false};
if(d.getMonth()!=r[2]){alert("wrong");return false};
if(d.getDate()!=r[3]){alert("wrong");return false};
if(d.getHours()!=r[4]){alert("wrong");return false};
if(d.getMinutes()!=r[5]){alert("wrong");return false};
if(d.getSeconds()!=r[6]){alert("wrong");return false};
alert("right");return false;
}
</script>
</head>
<body>
<form name="form" onsubmit="return validate(this.birth.value);">
<input type="text" name="birth"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>