setNamedItem Method

Adds an attribute to an element using an attributes collection.

dhtml语法

newretnode = attributes.setnameditem(onameditem)

parameters

oNamedItem Required. An attribute.

Return Value

Returns the previously existing attribute if it has the same name as the new attribute, otherwise null.

Remarks

An attribute that is set with this method does not have to apply to the element.
If an attribute with the same name is already present, it is replaced by the new attribute.

DHTML代码范例

The following example shows how to add an attribute to an element using the setNamedItem method.
<HTML>
<HEAD>
<SCRIPT>
function fnSetNamedItem(){
var nnm = myDIV.attributes;
var namedItem = document.createAttribute("title");
namedItem.value = "This is a ToolTip";
nnm.setNamedItem(namedItem);
}
</SCRIPT>
</HEAD>
<BODY onload="fnSetNamedItem();">
<DIV ID="myDIV">This DIV now has a ToolTip.</DIV>
</BODY>
</HTML>
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是否符合公共标准

This method is defined in World Wide Web Consortium (W3C) Document Object Model (DOM) Level 1 .

Applies To

attributes