function onAppDev() 
{
    var appdevCon = document.getElementById('appdevCon');
    var webdevCon = document.getElementById('webdevCon');
    var applink = document.getElementById('applink');
    var weblink = document.getElementById('weblink');

    appdevCon.style.visibility = 'visible';
    webdevCon.style.visibility = 'hidden';

    applink.style.color = '#8136bb';
    weblink.style.color = '#898787';
}

function onWebDev() 
{
    var appdevCon = document.getElementById('appdevCon');
    var webdevCon = document.getElementById('webdevCon');
    var applink = document.getElementById('applink');
    var weblink = document.getElementById('weblink');

    appdevCon.style.visibility = 'hidden';
    webdevCon.style.visibility = 'visible';

    applink.style.color = '#898787';
    weblink.style.color = '#8136bb';
}