JQuery 修改密码

<div >
table>
tr>
td>
td>
td>
tr>
tr>
td>
td>
td>
tr>
tr>
td>
td>
td>
tr>
table>
br />
span>
div>
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div>

function ChangePwd() {
			var value = $("#txt_newpwd").val();
			if (value == '') {
				$.messager.alert('请输入密码');
				return;
			}
			if (value != $("#txt_confirmpwd").val()) {
				$.messager.alert('两次密码输入不一致');
				return;
			}
			var oldpwd = $("#txt_oldpwd").val();
			if (value == oldpwd) {
								return;
			}
			                    //密码加密
	            var encrypt = new JSEncrypt(); 
                    encrypt.setPublicKey('')
		    var encrypted_input1 = encrypt.encrypt(oldpwd);
                       //存入密码
			var ajax_data = {
			    oldpwd: encrypted_input1,
			    newpwd: encrypted_input2
			};

			$.ajax({
				url: '/user/ChangPwd',
				data: JSON.stringify(ajax_data),
				type: 'post',
				dataType: 'text',
				contentType: 'application/json; charset=utf8',
				cache: false,
				success: function (data) {
					if (data.indexOf('修改成功') > -1) {
					}
					else
				},
				error: function (xhr) {
				}
			});
		}