function xmasModifications() {
	if (isXmas()) { 
    	    var elm = document.getElementById("fids3_logo");
    	    if (elm != null)
                elm.src="http://www.fids3.com/logo/fids3com_xmas.png";
	} else {
    		var elm = document.getElementById("fids3_xmas_flyer");
    		if (elm != null)
        	    elm.parentNode.removeChild( elm );
	}    
}

function isXmas() {
	var day  = new Date().getDate();
	var month  = new Date().getMonth()+1;
	return (month == 11 && day > 25) || (month == 12 && day < 27);
}