bgColor property

A string specifying the color of the document background.

语法

document.bgColor

Property of

document

描述

The bgColor property is expressed as a hexadecimal RGB triplet or as

The following example sets the color of the document background to aqua using a hexadecimal triplet:

document.bgColor="00FFFF"

See also

big method

Causes a string to be displayed in a big fdocument.write(worldString.small())document.write("<P>" + worldString.big())document.write("<P>" + worldString.fdocument.write(worldString.blink())document.write("<P>" + worldString.bold())document.write("<P>" + worldString.italics())document.write("<P>" + worldString.strike())

The previous example produces the same output as the following htm:

See also

blur method

Removes focus from the specified object.

语法

1. passwordName.blur()2. selectName.blur()3. textName.blur()4. textareaName.blur()

passwordName is either the value of the NAME attribute of a password object or an element in the elements array.
selectName is either the value of the NAME attribute of a select object or an element in the elements array.
textName is either the value of the NAME attribute of a text object or an element in the elements array.
textareaName is either the value of the NAME attribute of a textarea object or an element in the elements array.

用法

password, select, text, textarea

描述

Use the blur method to remove focus from a specific form element.

例子

The following example removes focus from the password element userPass:

userPass.blur()

<INPUT TYPE="password" NAME="userPass">

See also

bold method

Causes a string to be displayed as bold as if it were in a <B> tag.

语法

stringName.bold()

stringName is any string or a property of an existing object.

用法

string

描述

Use the bold method with the write or writeln methods to format and display a string in a document.

例子

var worldString="Hello, world"document.write(worldString.blink())document.write("<P>" + worldString.bold())document.write("<P>" + worldString.italics())document.write("<P>" + worldString.strike())

The previous example produces the same output as the following htm:

<BLINK>Hello, world</BLINK><P><B>Hello, world</B><P><I>Hello, world</I><P><STRIKE>Hello, world</STRIKE>

See also

butt NAME="butt []>NAME="butt specifies the label to display on the button face. You can access this value using the value property.

To use a button object''s properties and methods:

1. buttonName.propertyName2. buttonName.methodName(parameters)3. formName.elements[index].propertyName4. formName.elements[index].methodName(parameters)

buttonName is the value of the NAME attribute of a button object.
formName is either the value of the NAME attribute of a form object or an element in the forms array.
index is an integer representing a button object on a form.
propertyName is one of the properties listed below.
methodName is one of the methods listed below.

Property of

form

描述

A button object on a form looks as follows:

A button object is a form element and must be defined within a <FORM> tag.

The button object is a custom button that you can use to perform an action you define. The button executes the script specified by its onClick event handler.

Properties

name reflects the NAME attribute

value reflects the VALUE attribute

Methods

click

Event handlers

onClick

例子

The following example creates a button named calcButton. The text "Calculate" is displayed on the face of the button. When the button is clicked, the function calcFunction() is called.

See also

form, reset, and submit objects

无忧站长学院，建站自然无忧www.5ucms.org