The following example sets the color of active links to aqua using a hexadecimal triplet:

document.alinkColor="00FFFF"

See also

anchor method

Creates an htm anchor that is used as a hypertext target.

语法

text.anchor(nameAttribute)

text is any string or a property of an existing object.
nameAttribute is any string or a property of an existing object.

用法

string

描述

Use the anchor method with the write or writeln methods to programatically create and display an anchor in a document. Create the anchor with the anchor method, then call write or writeln to display the anchor in a document.

In the 语法, the text string represents the literal text that you want the user to see. The nameAttribute string represents the NAME attribute of the <A> tag.

Anchors created with the anchor method become elements in the anchors array. See the anchor object for informati msgWindow=window.open("","displayWindow") msgWindow.document.writeln(myString.anchor("c [TARGET="windowName"]> anchorText</A>HREF=http://www.dedecms.com/web-art/htmlbase/Javascript/20020827/locati specifies a tag that becomes an available hypertext target within the current document.
TARGET="windowName" specifies the window that the link is loaded into. This attribute is meaningful has no effect.

Properties

The anchors object has no properties. The anchors array has the following properties:

Methods

See also

asin method

Returns the arc sine (in radians) of a number.

语法

Math.asin(number)

number is a numeric expression between -1 and 1, or a property of an existing object.

用法

Math

描述

The asin method returns a numeric value between -pi/2 and pi/2 radians. If the value of number is outside the suggested range, the return value is always 0.

例子

// Displays the value 1.570796326794897 (pi/2)document.write("The arc sine of 1 is " + Math.asin(1))// Displays the value -1.570796326794897 (-pi/2)document.write("<P>The arc sine of -1 is " + Math.asin(-1))// Displays the value 0 because the argument is out of rangedocument.write("<P>The arc sine of 2 is " + Math.asin(2))

See also

atan method

Returns the arc tangent (in radians) of a number.

语法

Math.atan(number)

number is either a numeric expression or a property of an existing object, representing the tangent of an angle.

用法

Math

描述

The atan method returns a numeric value between -pi/2 and pi/2 radians.

例子

// Displays the value 0.7853981633974483document.write("The arc tangent of 1 is " + Math.atan(1))// Displays the value -0.7853981633974483document.write("<P>The arc tangent of -1 is " + Math.atan(-1))// Displays the value 0.4636476090008061document.write("<P>The arc tangent of .5 is " + Math.atan(.5))

See also