Unlike Internet Explorer that supports only setAttribute() and getAttribute(), Netscape 6 supports also setAttributeNode() and getAttributeNode(). The getAttributeNode() extracts the value of the attribute object. Here is the syntax:
elementNode.getAttributeNode(attributeName).value;
where:
elementNode is a tag node. It mush have been created with the createElement() method.
attributeName is the attribute name used in the createAttribute() method.
Here is a sample code which first creates an object, nodePublishDate, that is equal to today's date. It then creates a tag element node ("P"), and finally converts this latter node to an attribute node:
var nodeBook, nodePublishDate;
nodePublishDate = document.createAttribute("PublishDate");
nodePublishDate.value = String(Date());
nodeBook = document.createElement("P");
nodeBook.setAttributeNode(nodePublishDate);
We put it in a conditional statement in the header of this tip:
NS6 = false;
if (document.all) {}
else if (document.getElementById) {
NS6 = true;
var nodeBook, nodePublishDate;
nodePublishDate = document.createAttribute("PublishDate");
nodePublishDate.value = String(Date());
nodeBook = document.createElement("P");
nodeBook.setAttributeNode(nodePublishDate);
}
Click the following buttons to see that indeed nodeBook is an attribute node. The name of the attribute is PublishDate and its value is today's date:
Here is how we define the buttons above:
<FORM>
<INPUT TYPE="button" VALUE="getAttribute('PublishDate')"
onClick="javascript:if (NS6) {alert(nodeBook.getAttribute('PublishDate'))}
else {alert('You must use Netscape 6')}">
<INPUT TYPE="button" VALUE="getAttributeNode('PublishDate').value"
onClick="javascript:if (NS6) {alert(nodeBook.getAttributeNode('PublishDate').value)}
else {alert('You must use Netscape 6')}">
</FORM>
Notice the usage of the getAttributeNode() method above. Also, notice the similarity between getAttribute() and getAttributeNode().
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