function getElementsByClass(searchClass, domNode, tagNames) {
    if (domNode == null) domNode = document;
    if (tagNames == null) tagNames = '*';
    var el = new Array();
    var tags = domNode.getElementsByTagName(tagNames);
    var tcl = " "+searchClass+" ";
    for(i=0,j=0; i<tags.length; i++) {
        var test = " " + tags[i].className + " ";
        if (test.indexOf(tcl) != -1)
            el[j++] = tags[i];
    }
    return el;
}
function toggle(elementClass) {
    var tabs = getElementsByClass(elementClass);
    for(i=0; i<tabs.length; i++)
        tabs[i].style.display = (tabs[i].style.display!= 'none' ? 'none' : '' );
}
function toggleTR(elementClass) {
    var tabs = getElementsByClass(elementClass);
    for(i=0; i<tabs.length; i++)
        tabs[i].style.visibility = (tabs[i].style.visibility!= 'collapse' ? 'collapse' : 'visible' );
}
//<script type="text/javascript" src="tx_wfqbe.js"></script>