<script>

	$(function(){

		var _login = function (){

			var _name = $('#name');

			var _password = $('#password');

            if(_name.val() == '' || _name.val() == '用户名'){

                _name.focus();

                return false;

            }

            if(_password.val() == '' || _password.val() == '用户名'){

                _password.focus();

                return false;

            }

            $.ajax({

            	type:'POST',

            	data:$('.login form').serialize(),

            	url:'register.php',

            	dataType:'json',

            	success:function(data){

                    if(data.msg == 1){

                    	alert('注册成功');

                    	window.location.href='user.php';

                    }else if(data.msg ==2){

                    	alert('用户名已经存在！')

                    }else{

                    	alert('注册失败')

                    }

            	}

            })

		}

        $('#submit').click(function(){

        	_login();

        })

	})

	document.onKeydown= function(event){

    	var e = event.keyCode?event.keyCode:event.which?event.which:event.charCode;

    	if(e == 13){

    		_login();

    	}

    }

</script>