function getQueryString()
{
    var url = document.URL; 
    var ac = url.substring(url.indexOf('?'), url.length);
    return (ac); 
}
 
function addGetVal(cVar, cVal)
{
    var cUrl = document.URL;
    var nUrl = cUrl;
    var nIndex = 0;
    var index = cUrl.indexOf(cVar);
    if (index != -1)
    {
        nIndex = index + cVar.length;
        var main = cUrl.substring(0, index);
        var leftOver = cUrl.substring((index + cVar.length), cUrl.length);
        var toIndex = leftOver.indexOf("&");
        var restOfVars = "";
        if (toIndex != -1)
            var restOfVars = leftOver.substring(toIndex, leftOver.length);
        nUrl = main + restOfVars
    }
    nUrl += cVar + cVal;
    location.href = nUrl;
}
    

function whichBrowser()
{
    var agt = navigator.userAgent.toLowerCase();
    if (agt.indexOf("opera") != -1) return 'Opera';
    if (agt.indexOf("staroffice") != -1) return 'Star Office';
    if (agt.indexOf("webtv") != -1) return 'WebTV';
    if (agt.indexOf("beonex") != -1) return 'Beonex';
    if (agt.indexOf("chimera") != -1) return 'Chimera';
    if (agt.indexOf("netpositive") != -1) return 'NetPositive';
    if (agt.indexOf("phoenix") != -1) return 'Phoenix';
    if (agt.indexOf("firefox") != -1) return 'Firefox';
    if (agt.indexOf("safari") != -1) return 'Safari';
    if (agt.indexOf("skipstone") != -1) return 'SkipStone';
    if (agt.indexOf("msie") != -1) return 'Internet Explorer';
    if (agt.indexOf("netscape") != -1) return 'Netscape';
    if (agt.indexOf("mozilla/5.0") != -1) return 'Mozilla';
    if (agt.indexOf('\/') != -1)
    {
        if (agt.substr(0, agt.indexOf('\/')) != 'mozilla')
            return navigator.userAgent.substr(0, agt.indexOf('\/'));
        else return 'Netscape';
    }
    else if (agt.indexOf(' ') != -1)
        return navigator.userAgent.substr(0, agt.indexOf(' '));
    else return navigator.userAgent;
}