(function( $ ){
    $.loadStylesheet = function(url)
    {
        // IE
        if (document.createStyleSheet)
        {
            document.createStyleSheet(url);
        }
        // Standard 
        else
        {
            $("head").append($("<link rel='stylesheet' href='" + url  + "' type='text/css' media='screen' />"));
        }
    };
})( jQuery );