var DynFavIco = {

    IE: (document.all && document.getElementById && !window.opera),
    FF: (!document.all && document.getElementById && !window.opera),
    el: null,

    domReady: function() {
        var c = $('<span />').appendTo('body').hide();
        DynFavIco.el = c[0];
    },


    change: function(icon) {
        
        DynFavIco.el.innerHTML = '<link rel="shortcut icon" href="' + icon + '">';

    }

}

$(function() {
    DynFavIco.domReady();
});


var i = 1;
var icon;
var t;

function changeIcon() {
    if (i > 4) i = 1;
    icon = i;
    icon = icon + '.ico';
    i++;

    DynFavIco.change(icon);
    t = setTimeout('changeIcon()', 2000);
}