Supports XML reading in Firefox

Recently, I was modifying the page on which the Ajax function was used in the project. I found that many of the statements were problematic in Firefox, mainly because I submitted them only after I passed the test in IE, the Firefox method differs greatly from IE. The main problem is that when reading the content of an XML node or a subnode, The selectnodes and selectsinglenode methods are generally used in IE, firefox does not have these methods, so it cannot be used. After finding them for a long time a few days ago, I have not found a good solution. Many websites do not provide support at all, I finally found a good solution today. I made it into a JS file and can use it like ie If I reference it.

The Code is as follows: VaR getnodevalue = function (OBJ)
{
VaR STR = "";
If (window. activexobject) // IE
{
STR = obj. text;
}
Else // Mozilla
{
Try
{
STR = obj. childnodes [0]. nodevalue;
}
Catch (Ex)
{
STR = "";
}
}
Return STR;
}

If (document. Implementation & document. Implementation. createdocument)
{
Xmldocument. Prototype. loadxml = function (xmlstring)
{
VaR childnodes = This. childnodes;
For (VAR I = childnodes. Length-1; I> = 0; I --)
This. removechild (childnodes [I]);

VaR dp = new domparser ();
VaR newdom = DP. parsefromstring (xmlstring, "text/XML ");
VaR newelt = this.importnode(newdom.doc umentelement, true );
This. appendchild (newelt );
};

// Check for xpath implementation
If (document. Implementation. hasfeature ("XPath", "3.0 "))
{
// Prototying the xmldocument
Xmldocument. Prototype. selectnodes = function (cxpathstring, xnode)
{
If (! Xnode) {xnode = This ;}
VaR onsresolver = this.creatensresolver(this.doc umentelement)
VaR aitems = This. Evaluate (cxpathstring, xnode, onsresolver,
Xpathresult. ordered_node_snapshot_type, null)
VaR aresult = [];
For (VAR I = 0; I <aitems. snapshotlength; I ++)
{
Aresult [I] = aitems. snapshotitem (I );
}
Return aresult;
}

// Prototying the element
Element. Prototype. selectnodes = function (cxpathstring)
{
If (this. ownerdocument. selectnodes)
{
Return this. ownerdocument. selectnodes (cxpathstring, this );
}
Else {Throw "for XML elements only ";}
}
}

// Check for xpath implementation
If (document. Implementation. hasfeature ("XPath", "3.0 "))
{
// Prototying the xmldocument
Xmldocument. Prototype. selectsinglenode = function (cxpathstring, xnode)
{
If (! Xnode) {xnode = This ;}
VaR xitems = This. selectnodes (cxpathstring, xnode );
If (xitems. length> 0)
{
Return xitems [0];
}
Else
{
Return NULL;
}
}

// Prototying the element
Element. Prototype. selectsinglenode = function (cxpathstring)
{
If (this. ownerdocument. selectsinglenode)
{
Return this. ownerdocument. selectsinglenode (cxpathstring, this );
}
Else {Throw "for XML elements only ";}
}
}
}

As long as the above Code is saved as a JS file and referenced on the page, the read operation of the XML node can be used like IE and has passed the test.

Firefox XML Reading Class: http://www.cnblogs.com/Files/huacn/jquery.xml.js
Firefox read XML demo address: http://www.wathon.com/opensource/js/xmlrssreader/xmlrssreader.html
Firefox read XML example source code package download: http://www.wathon.com/opensource/js/xmlrssreader/xmlrssreader.zip