HBCMS更多的中文手册参考：

item Method

DHTML中文手册

Retrieves an object from the specified collection.

dhtml语法

oItem = object.item( [iIndex])

Parameters

iIndex Optional. Integer that specifies the index of the object to retrieve from the collection. The first object in the collection is located at index position 0, and the last object in the collection is located at position length minus 1. If a value is not specified, the default is 0.

Return Value

Returns a reference to the object located at the specified index in the collection.

DHTML代码范例

This example demonstrates how to use the item method to retrieve an object from a collection.

<HTML XMLNS:t="urn:schemas-microsoft-com:time">
<HEAD>
<TITLE>item Method</TITLE>
<?IMPORT namespace="t" implementation="#default#time2">
<STYLE>
.time{ behavior: url(#default#time2);}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
var m2; //another media object
//...
function setActiveTrack(){
if(itemNumber.value=="" || (itemNumber.value<1 || itemNumber.value>5) || (isFinite(itemNumber.value)==false)){
alert('Must enter a valid track number!\nPlease re-enter your choice (1-5).');
itemNumber.value='';
itemNumber.focus();
return;
}else{
m2 = m1.playList.item(itemNumber.value-1); //index starts at 0
updateFields();
}
}
...
</SCRIPT>
</HEAD>
<BODY  TOPMARGIN=0 LEFTMARGIN=0 BGPROPERTIES="FIXED" BGCOLOR="#FFFFFF" LINK="#000000" VLINK="#808080" ALINK="#000000">
<t:media id="m1" begin="indefinite;" src="../../common/samples/author/behaviors/media/media.asx" />
<span id="title1">Title:</span><BR>
<span id="author1">Author:</span><BR>
<span id="abstract1">Abstract:</span><BR>
<span id="copyright1">Copyright:</span><BR>
<span id="index1">Index: </span><BR><BR>
Enter track number (1-5): <input type="text" name="itemNumber" value="" size="2"><BR><BR>
<BUTTON id="b0" onclick="m1.beginElement();setActiveTrack();">Start</BUTTON>
<BUTTON id="b3" onclick="m1.endElement();emptyFields();">Stop</BUTTON>
<BR><BR>
</BODY>
</HTML>
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是否符合公共标准

This method is a Microsoft extension to Synchronized Multimedia Integration Language (SMIL) Non-Microsoft link.

Applies To

activeElements, timeAll, timeChildren, playList

更多语法参考

introduction to html+time, activeElements