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JavaScript精简学习4:表单

2009-12-16 02:24| 发布者: admin| 查看: 17| 评论: 0|原作者: 小寳寳

43 表单构成
1:

2:
3:
7:

8:
9:

44 访问表单中的文本框内容
1:

2:
3:

4: Check Text Field
45 动态复制文本框内容
1:

2: Enter some Text:

3: Copy Text:
4:

5: 6: document.myForm.myText.value;”>Copy Text Field
46 侦测文本框的变化
1:

2: Enter some Text:
3:

47 访问选中的Select
1:

2:
7:

8: Check Selection List
48 动态增加Select项
1:

2:
6:

7:
49 验证表单字段
1:
9:

10: Text Field:
11:

12:

50 验证Select项
1: function checkList(selection) {
2: if (selection.length == 0) {
3: window.alert(“You must make a selection from the list.”);
4: return false;
5: }
6: return true;
7: }
51 动态改变表单的action
1:

2: Username:

3: Password:

4:
5:
6:
7:

52 使用图像按钮
1:

2: Username:

3: Password:

4:
5:

6:
53 表单数据的加密
1:
18:

19: Enter Some Text:
20:

上面的encryptForm方法把表单中的数据转换为编码,在提交表单之前完成了简单的表单数据加密~

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