function mxmeta(name, content, httpEquiv)
{
    try
    {
        var s = document.createElement('meta');
        
        if (name != null) 
        {
            s.setAttribute('name', name);
        }

        s.setAttribute('content', content);
        
        if (httpEquiv != null) 
        {
            s.setAttribute('http-equiv', httpEquiv);
        }

        var t = document.getElementsByTagName('meta')[0];
        t.parentNode.insertBefore(s, t);
    }
    catch (e)
    {
        // ignore
    }
}
Adds meta tag to the page.