What steps will reproduce the problem? 1. In IE7, call the 3-parameter version of getElementsByClassName, searching inside a div, eg getElementsByClassName("myclass", "span", document.getElementById("someContainerDiv"));

Expected Output: Array of elements returned.

Actual Output: "Object doesn't support this property or method" exception

What version of the product are you using? On what operating system? js version: 1-0-1.
IE7 on Win2k

Can't reproduce the error. Tested code (below) works in IE 7 as well:

Testing getElementsByClassName

<script type="text/javascript">
    /*
        Developed by Robert Nyman, http://www.robertnyman.com
        Code/licensing: http://code.google.com/p/getelementsbyclassname/
    */
    var getElementsByClassName = function (className, tag, elm){
        if (document.getElementsByClassName) {
            getElementsByClassName = function (className, tag, elm) {
                elm = elm || document;
                var elements = elm.getElementsByClassName(className),
                    nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
                    returnElements = [],
                    current;
                for(var i=0, il=elements.length; i<il; i+=1){
                    current = elements[i];
                    if(!nodeName || nodeName.test(current.nodeName)) {
                        returnElements.push(current);
                    }
                }
                return returnElements;
            };
        }
        else if (document.evaluate) {
            getElementsByClassName = function (className, tag, elm) {
                tag = tag || "*";
                elm = elm || document;
                var classes = className.split(" "),
                    classesToCheck = "",
                    xhtmlNamespace = "http://www.w3.org/1999/xhtml",
                    namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)?

xhtmlNamespace : null, returnElements = [], elements, node; for(var j=0, jl=classes.length; j"; elm = elm || document; var classes = className.split(" "), classesToCheck = [], elements = (tag === "" && elm.all)? elm.all : elm.getElementsByTagName(tag), current, returnElements = [], match; for(var k=0, kl=classes.length; k

    window.onload = function () {
        var apa = getElementsByClassName("myclass", "span",

document.getElementById("someContainerDiv")); alert(apa); };