if ((monthAndDay > 1201) || (monthAndDay === 101)) { // snowman icon
    document.write('<IMG BORDER="0" SRC="graphics/snowman2.gif" WIDTH="34" HEIGHT="40" ALIGN="left" ALT="">');
} else {
    document.write('<IMG BORDER="0" SRC="graphics/shamrocks.gif" WIDTH="45" HEIGHT="40" ALT="">');
}