In case you'd want to avoid extension functions altogether, see this:

    http://www.topxml.com/code/default.asp?p=3&id=v20010205033413

Cheers,
Dimitre Novatchev

"Dmitry Bond." <dima_ben@u...> wrote in message 
news:1157460142.211799.160310@i......
> Hello.
>
> Something strage happens when I try to compare a string value (value of
> XML attribute) with ">", "<" or ">=", "<=" operators. Looks like only
> "=" works for strings comparison in MSXML. :-(
>
> The following XPath queries always returns 0 nodes:
>
>  //Order [ @Location <= 'M' ]
>  //Order [ @Location >= 'M' ]
>
> but the query:
>
>  //Order [ @Location = 'M100' ]
>
> returns 1 node in list. So, I assume that there are problems with "<"
> and ">" comparison operators in MSXML.
>
> But I need less- and greather- comparisons for strings! Could you
> please help me to solve this issue? Maybe there are some
> workarounds?...
>
> Below you can see test script (JScript), xml sample and output sample:
>
> ===test-script:begin===
> var XmlName = "order.xml";
> var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0");
> xmlDoc.async = false;
> xmlDoc.resolveExternals = false;
> xmlDoc.load(XmlName);
> xmlDoc.setProperty("SelectionLanguage", "XPath");
> if (xmlDoc.parseError.errorCode == 0)
> {
>  WScript.Echo("XML successfully loaded.");
>  var query = "//Order [ @Location = 'M100' ]";
>  var nodesList = xmlDoc.selectNodes(query);
>  WScript.Echo(nodesList.length + " nodes selected by { " + query + "
> }");
>
>  query = "//Order [ @Location >= 'M' ]";
>  nodesList = xmlDoc.selectNodes(query);
>  WScript.Echo(nodesList.length + " nodes selected by { " + query + "
> }");
>
>  query = "//Order [ @Location <= 'M' ]";
>  nodesList = xmlDoc.selectNodes(query);
>  WScript.Echo(nodesList.length + " nodes selected by { " + query + "
> }");
> }
> ===test-script:end===
>
> ===order.xml:begin===
> <Order Location="M100"/>
> ===order.xml:end===
>
> ===script console output sample:begin===
> XML successfully loaded.
> 1 nodes selected by { //Order [ @Location = 'M100' ] }
> 0 nodes selected by { //Order [ @Location >= 'M' ] }
> 0 nodes selected by { //Order [ @Location <= 'M' ] }
> ===script console output sample:end===
>
>
> WBR,
> Dmitry.
>
> ps. Tested with MSXML 4.0sp2 and 6.0.
>