/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com

    To get all "a" elements in the document with an "info-links" class:
    getElementsByClassName(document, "a", "info-links");

    To get all "div" elements within the element "container" with a "col" class:
    getElementsByClassName(document.getElementById("container"), "div", "col");

    To get all elements within the document with a "click-me" class
    getElementsByClassName(document, "*", "click-me");

    Source: http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
*/

function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }
    }
    return (arrReturnElements)
}