Password 对象

The Password object represents a password field in an HTML form. For each instance of an HTML <input type="password"> tag on a form, a Password object is created.
当HTML表单中含有<input type="password">标签就意味着Password对象建立起来了

You can access a Password object by indexing the elements array (by number or name) of the corresponding form or by using getElementById().
你可以根据表单的元素组索引数或名称来访问Password对象，也可以使用getElementById()来访问

IE: Internet Explorer, F: Firefox, N: Netscape, W3C: World Wide Web Consortium (Internet Standard).

Password 对象属性

Property 属性	Description 描述	IE	F	N	W3C
accept	Sets or returns a list of content types, which the server processing this form will handle correctly 设置或返回内容类型列表，服务器可以更准确的处理这个表单	-			Yes
accesskey	Sets or returns the keyboard key to access the password field 设置或返回可以访问password field的键盘按键。	4			Yes
defaultValue	Sets or returns the initial value of the password field 设置或返回password field的初始值	3	1	2	Yes
disabled	Sets or returns whether or not the password field should be disabled 设置或返回password field是否可用	5	1	6	Yes
form	Returns a reference to the password field's parent form 返回password field的父表参考	3	1	2	Yes
id	Sets or returns the id of the password field (In IE 4 this property is read-only) 设置或返回password field的id	4	1		No
maxLength	Sets or returns the maximum number of characters the user can enter in the password field 设置后返回password field里可输入的最大限度字符数	4	1	6	Yes
name	Sets or returns the name of the password field 设置或返回password field的name	3	1	2	Yes
readOnly	Sets or returns whether the content of the password field is read-only 设置或返回password field里的内容为只读	4	1	6	Yes
size	Sets or returns the size of the password field 设置或返回password field的大小	3	1	6	Yes
tabIndex	Sets or returns the index that defines the tab order for the password field 设置或返回password field的tab顺序	4			Yes
type	The type of the form element. For a password object it will always be "password" 表单元素类型。password 对象就显示为"password"	3	1	3	Yes
value	Sets or returns the value of the value attribute of the password field 设置或返回password field的value属性值	3	1	2	Yes

Password 对象方法

Method 方法	Description 描述	IE	F	N	W3C
blur()	Removes focus from the password field 取消对password field的聚焦	4	1	2	Yes
click()	Simulates a mouse-click on the password field 模拟鼠标点击password field	4	1		No
focus()	Sets focus on the password field 让password field获得聚焦	3	1	2	Yes
select()	Selects and highlights the entire text that is in the password field 选中password field里的文字并且显示高亮	4	1	2	Yes

Password 对象事件

Syntax: object.event_name="someJavaScriptCode"
语法：对象.事件名称="一些JS代码"

Event 事件	Description 描述	IE	F	N	W3C
onBlur	Executes some code when the password field loses focus 当password field失去聚焦的时候执行代码	4	1	2
onClick	Executes some code when the user clicks in the password field 当用户点击password field的时候执行代码	4
onFocus	Executes some code when the password field gets focus 当password field得到聚焦的时候执行一些代码	3	1	2
onKeyDown	Executes some code when a key is pressed down in the password field 当在password field中按住某键的时候执行代码	4	1	4
onKeyPress	Executes some code when an alphanumeric key is pressed in the password field 当在password field中按下并释放某键的时候执行一些代码	4	1	4
onKeyUp	Executes some code when a key is released in the password field 当在password field中释放某键的时候执行一些代码	4	1	4
onSelectStart	Executes some code when some text in the password field is selected 当password field中的文字选中时执行一些代码	4

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