if (-1 != navigator.userAgent.indexOf("Mozilla")) {


    //Input the IDs of the IFRAMES you wish to dynamically resize to match its content height:
    //Separate each ID with a comma. Examples: ["myframe1", "myframe2"] or ["myframe"] or [] for none:
    var iframeids = ["topic"]

    //Should script hide iframe from browsers that don't support this script (non IE5+/NS6+ browsers. Recommended):
    var iframehide = "no"

    var getFFVersion = navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1]
    var FFextraHeight = parseFloat(getFFVersion) >= 0.1 ? 3 : 0 //extra height in px to add to iframe in FireFox 1.0+ browsers

    function resizeCaller() {
        var dyniframe = new Array()
        for (i = 0; i < iframeids.length; i++) {
            if (document.getElementById)
                resizeIframe(iframeids[i])
            //reveal iframe for lower end browsers? (see var above):
            if ((document.all || document.getElementById) && iframehide == "no") {
                var tempobj = document.all ? document.all[iframeids[i]] : document.getElementById(iframeids[i])
                tempobj.style.display = "block"
            }
        }
    }

    function resizeIframe(frameid) {
        var currentfr = document.getElementById(frameid)
        if (currentfr && !window.opera) {
            currentfr.style.display = "block"
            if (currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) //ns6 syntax
                currentfr.height = currentfr.contentDocument.body.offsetHeight + FFextraHeight;
            else if (currentfr.Document && currentfr.Document.body.scrollHeight) //ie5+ syntax
                currentfr.height = currentfr.Document.body.scrollHeight;
            if (currentfr.addEventListener)
                currentfr.addEventListener("load", readjustIframe, false)
            else if (currentfr.attachEvent) {
                currentfr.detachEvent("onload", readjustIframe) // Bug fix line
                currentfr.attachEvent("onload", readjustIframe)
            }
        }
    }

    function readjustIframe(loadevt) {
        var crossevt = (window.event) ? event : loadevt
        var iframeroot = (crossevt.currentTarget) ? crossevt.currentTarget : crossevt.srcElement
        if (iframeroot)
            resizeIframe(iframeroot.id);
    }

    function loadintoIframe(iframeid, url) {
        if (document.getElementById)
            document.getElementById(iframeid).src = url
    }

    if (window.addEventListener)
        window.addEventListener("load", resizeCaller, false)
    else if (window.attachEvent)
        window.attachEvent("onload", resizeCaller)
    else
        window.onload = resizeCaller

}

else
{
    // Internet Explorer
    try {
        var oBody = ifrm.document.body;
        var oFrame = document.all("ifrm");

        oFrame.style.height = oBody.scrollHeight + (oBody.offsetHeight - oBody.clientHeight);
        oFrame.style.width = oBody.scrollWidth + (oBody.offsetWidth - oBody.clientWidth);
    }
    //An error is raised if the IFrame domain != its container's domain
    catch (e) {
        window.status = 'Error: ' + e.number + '; ' + e.description;
    }
}

function indexShow() {
    parent.document.getElementById('cntLink').style.display = 'none';
    parent.document.getElementById('idxLink').style.display = 'block';
}

function contentShow() {
    parent.document.getElementById('idxLink').style.display = 'none';
    parent.document.getElementById('cntLink').style.display = 'block';
}