function Toggle(strObj) {
    //hides/shows an element
    HideAll();

    if (document.getElementById(strObj).style.display == 'block') {
        document.getElementById(strObj).style.display = 'none';
    }
    else {
        document.getElementById(strObj).style.display = 'block';
    }
}

function HideAll() {
    //hides all toggle elements
    document.getElementById('about').style.display = 'none';
    document.getElementById('faq').style.display = 'none';
    document.getElementById('api').style.display = 'none';
    document.getElementById('download').style.display = 'none';
    document.getElementById('contact').style.display = 'none';
    document.getElementById('copyright').style.display = 'none';
}

function Clear() {
    //clears the Url input of the default help text
    if (document.getElementById('TextBox1').value == 'Paste your long Url here, then click to shorten!') {
        document.getElementById('TextBox1').value = '';
    }
}