$(document).ready(function()
{
    var fadeTime = 100;
    var icons =
    [
        {
            'class': 'icon_home',
            'width': 1050
        },
        {
            'class': 'icon_mail',
            'width': 1085
        }
    ];
    
    var icon_count = icons.length;
    var initWidth = $(document).width();
    for(var i=0; i<icon_count; i++)
    {
        if(initWidth >= icons[i]['width'])
        {
            icons[i]['visible'] = true;
        }
        else
        {
            icons[i]['visible'] = false;
            $('.' + icons[i]['class']).fadeOut(fadeTime);
        }
    }
    window.onresize = function(event)
    {
        var initWidth = $(document).width();
        for(var i=0; i<icon_count; i++)
        {
            if(!icons[i]['visible'] && initWidth >= icons[i]['width'])
            {
                icons[i]['visible'] = true;
                $('.' + icons[i]['class']).fadeIn(fadeTime);
            }
            else if(icons[i]['visible'] && initWidth < icons[i]['width'])
            {
                icons[i]['visible'] = false;
                $('.' + icons[i]['class']).fadeOut(fadeTime);
            }
        }
    }
});