function windowWriter1() {
   var myString = "Hello, world!"
   msgWindow.document.open()
   msgWindow.document.write(myString + "<P>")
   msgWindow.document.close()
}

参看

getSelection

语法

安全性

示例

<INPUT TYPE="BUTTON" NAME="getstring"
   VALUE="Show highlighted text (if any)"
   onClick="alert('You have selected:\n'+document.getSelection());">

handleEvent

语法

描述

open

语法

描述

• text/html specifies a document containing ASCII text with HTML formatting.
• text/plain specifies a document containing plain ASCII text with end-of-line characters to delimit displayed lines.
• image/gif specifies a document with encoded bytes constituting a GIF header and pixel data.
• image/jpeg specifies a document with encoded bytes constituting a JPEG header and pixel data.
• image/x-bitmap specifies a document with encoded bytes constituting a bitmap header and pixel data.
• plugIn loads the specified plug-in and uses it as the destination for write and writeln methods. For example, "x-world/vrml" loads the VR Scout VRML plug-in from Chaco Communications, and "application/x-director" loads the Macromedia Shockwave plug-in. Plug-in MIME types are only valid if the user has installed the required plug-in software.

End the stream by using the document.close method. The close method causes text or images that were sent to layout to display. After using document.close, call document.open again when you want to begin another output stream.

In Navigator 3.0 and later, document.open or document.open("text/html") clears the current document if it has finished loading. This is because this type of open call writes a default <BASE HREF=> tag so you can generate relative URLs based on the generating script's document base.

The "replace" keyword causes the new document to reuse the history entry that the previous document used. When you specify "replace" while opening a document, the target window's history length is not incremented even after you write and close.

"replace" is typically used on a window that has a blank document or an "about:blank" URL. After "replace" is specified, the write method typically generates HTML for the window, replacing the history entry for the blank URL. Take care when using generated HTML on a window with a blank URL. If you do not specify "replace", the generated HTML has its own history entry, and the user can press the Back button and back up until the frame is empty.

After document.open("text/html","replace") executes, history.current for the target window is the URL of document that executed document.open.

示例

function windowWriter1() {
   var myString = "Hello, world!"
   msgWindow.document.open()
   msgWindow.document.write("<P>" + myString)
   msgWindow.document.close()
} 示例 2. The following function calls document.open with the "replace" keyword to open a stream before issuing write methods. The HTML code in the write methods is written to msgWindow, replacing the current history entry. The history length of msgWindow is not incremented.

function windowWriter2() {
   var myString = "Hello, world!"
   msgWindow.document.open("text/html","replace")
   msgWindow.document.write("<P>" + myString)
   msgWindow.document.write("<P>history.length is " +
      msgWindow.history.length)
   msgWindow.document.close()
} The following code creates the msgWindow window and calls the function:

msgWindow=window.open('','',
   'toolbar=yes,scrollbars=yes,width=400,height=300')
windowWriter2() 示例 3. In the following example, the probePlugIn function determines whether a user has the Shockwave plug-in installed:

function probePlugIn(mimeType) {
   var havePlugIn = false
   var tiny = window.open("", "teensy", "width=1,height=1")
   if (tiny != null) {
      if (tiny.document.open(mimeType) != null)
         havePlugIn = true
      tiny.close()
   }
   return havePlugIn
} var haveShockwavePlugIn = probePlugIn("application/x-director")

参看

releaseEvents

Note

语法

描述

routeEvent

语法

描述

routeEvent works in tandem with captureEvents, releaseEvents, and handleEvent. For more information, see "Events in Navigator 4.0".

write

语法

描述

The write method is the same as the writeln method, except the write method does not append a newline character to the end of the output.

Use the write method within any SCRIPT tag or within an event handler. Event handlers execute after the original document closes, so the write method implicitly opens a new document of mimeType text/html if you do not explicitly issue a document.open method in the event handler.

You can use the write method to generate HTML and JavaScript code. However, the HTML parser reads the generated code as it is being written, so you might have to escape some characters. For example, the following write method generates a comment and writes it to window2:

window2=window.open('','window2')
beginComment="\<!--"
endComment="--\>"
window2.document.write(beginComment)
window2.document.write(" This some text inside a comment. ")
window2.document.write(endComment)

Printing, saving, and viewing generated HTML