function jsExists(sPath)
{
    var bScriptFound = false;
    var oScripts = document.getElementsByTagName("script");
    for (var i = 0; i < oScripts.length; i++)
    {
        var sSrc = oScripts[i].src.toLowerCase();
        if (sSrc.indexOf(sPath.toLowerCase()) > -1)
        {
            bScriptFound = true;
        }
    }
    return bScriptFound;
}