function executeQuery(myForm)
{
    var val = myForm.website.value;

    if(val == 'yourwebsite.com')
    {
        val = '';
    }

    if(val.indexOf('://') != -1)
    {
        if(val.substr(0,7) == 'http://')
        {
            val = val.substr(7);
        }
        else if(val.substr(0,8) == 'https://')
        {
            val = val.substr(8);
        }
        else if(val.substr(0,6) == 'ftp://')
        {
            val = val.substr(6);
        }
    }

    if(val.substr(0,4) == 'www.')
    {
        val = val.substr(4);
    }

    if(val.indexOf('/') != -1)
    {
        val = val.substr(0, val.indexOf('/'));
    }

    myForm.website.value = val;

    if(val.length == 0)
    {
        alert('Domain is empty.');
        myForm.website.focus();
        return false;
    }

    var parts = val.split('.');
    if(parts.length < 2)
    {
        alert('Domain has no extension.');
        myForm.website.focus();
        myForm.website.value = val;
        return false;
    }

    var checkUrl = /^[0-9a-zA-Z\-]+$/;
    for(i = 0; i < parts.length; ++i)
    {
        if(!checkUrl.test(parts[i]))
        {
            alert('Invalid character in domain, only letters, numbers or hyphens are allowed.');
            myForm.website.focus();
            myForm.website.value = val;
            return false;
        }
    }

    switch(myForm.q.value)
    {
        case '1':
            openNew('http://who.is/whois-com/ip-address/'+val);
            break;
        case '2':
            openNew('http://siteexplorer.search.yahoo.com/advsearch?p=http%3A%2F%2Fwww.'+val+'&bwm=i&bwmf=a&bwms=p');
            break;
        case '3':
            openNew('http://web.archive.org/web/*/http://www.'+val);
            break;
        case '4':
            openNew('http://whoishostingthis.com/www.'+val);
            break;
        case '5':
            openNew('http://network-tools.com/default.asp\?prog=trace&host='+val);
            break;
        case '6':
            document.f6.domainname.value = 'www.'+val;
            document.f6.submit();
            myForm.q.focus();
            myForm.q.value = val;
            return false;
            break;
        case '7':
            openNew('http://www.alexa.com/data/details/main/www.'+val);
            break;
        case '8':
            openNew('http://siteanalytics.compete.com/www.'+val+'/?metric=uv');
            break;
        case '9':
            openNew('http://www.quantcast.com/'+val);
            break;
        default:
            alert('Please select a tool to use on the website.');
    }

    return false;
}

function openNew(url)
{
    window.open(url,'_blank');
}

function selectQuery(no)
{
    document.f.q.value = no;
    var obj;
    for(i = 1; i <= 9; ++i)
    {
        obj = document.getElementById('img'+i);
        if(obj)
        {
            if(no == i)
            {
                obj.src = obj.src.replace('-off.gif', '-on.gif');
            }
            else
            {
                obj.src = obj.src.replace('-on.gif', '-off.gif');
            }
        }
    }
    return false;
}