length reflects the number of links in a document
methods
none.
event handlers
onclick
onmouseover
例子
example 1. the following example creates a hypertext link to an anchor named javascript_intro.
<![CDATA[<a href="http://dev.csdn.net/article/10/#javascript_intro">introduction to javascript</a>
]]>
example 2. the following example creates a hypertext link to an anchor named numbers in the file doc3.htm in the window window2. if window2 does not exist, it is created.
<![CDATA[<li><a href="http://dev.csdn.net/article/10/tppmsgs/msgs0.htm#16" tppabs="http://www.nease.net/~jim/doc3.htm#numbers" target="window2">numbers</a>
]]>
example 3. the following example takes the user back x entries in the history list:
<![CDATA[<a href="javascript:history.go(-1 * x)">click here</a>
]]>
example 4. the following example creates a hypertext link to a url. a set of radio buttons lets the user choose between three urls. the link's onclick event handler sets the url (the link's href property) based on the selected radio button. the link also has an onmouseover event handler that changes the window's status property. as the example shows, you must return true to set the window.status property in the onmouseover event handler.
<![CDATA[<script>
var desthref="'http://www.netscape.com/"
</script>
<form name="form1">
<b>choose a destination from the following list, then click "click me" below.</b>
<br><input type="radio" name="destination" value="netscape"
onclick="desthref='http://www.netscape.com/'"> netscape home page
<br><input type="radio" name="destination" value="sun"
onclick="desthref='http://www.sun.com/'"> sun home page
<br><input type="radio" name="destination" value="rfc1867"
onclick="desthref='http://www.ics.uci.edu/pub/ietf/htm/rfc1867.txt'"> rfc 1867
<p><a href="http://dev.csdn.net/article/10/"
onmouseover="window.status='click this if you dare!'; return true"
onclick="this.href=desthref">
<b>click me</b></a>
</form>
]]>
example 5: links array. the following example opens the netscape home page in the newwindow window. the linkgetter() function uses the links array to display the value of each of its links.
<![CDATA[ newwindow=window.open("http://www.netscape.com")
function linkgetter() {
msgwindow=window.open("")
for (var i = 0; i < newwindow.document.links.length; i++) {
msgwindow.document.write(newwindow.document.links[i] + "<br></p>
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