zodiac addon problem

im adding a option in the profile that shows the users zodiac sign and it keeps showing up as N/A does some one see whats wrong?

PHP Code:

if (($bday[2]>=21 and $bday[1]>=3) and ($bday[2]<=19 and $bday[1]<=4)) {
$zodiacsign="Aries";
} else if (($bday[2]>=20 and $bday[1]>=4) and ($bday[2]<=20 and $bday[1]<=5)) {
$zodiacsign="Taurus";
} else if (($bday[2]>=21 and $bday[1]>=5) and ($bday[2]<=21 and $bday[1]<=6)) {
$zodiacsign="Gemini";
} else if (($bday[2]>=22 and $bday[1]>=6) and ($bday[2]<=22 and $bday[1]<=7)) {
$zodiacsign="Cancer";
} else if (($bday[2]>=23 and $bday[1]>=7) and ($bday[2]<=22 and $bday[1]<=8)) {
$zodiacsign="Leo";
} else if (($bday[2]>=23 and $bday[1]>=8) and ($bday[2]<=22 and $bday[1]<=9)) {
$zodiacsign="Virgo";
} else if (($bday[2]>=23 and $bday[1]>=9) and ($bday[2]<=21 and $bday[1]<=10)) {
$zodiacsign="Libra";
} else if (($bday[2]>=24 and $bday[1]>=10) and ($bday[2]<=21 and $bday[1]<=11)) {
$zodiacsign="Scorpio";
} else if (($bday[2]>=22 and $bday[1]>=11) and ($bday[2]<=21 and $bday[1]<=12)) {
$zodiacsign="Sagittarius";
} else if (($bday[2]>=22 and $bday[1]>=12) and ($bday[2]<=19 and $bday[1]<=1)) {
$zodiacsign="Capricorn";
} else if (($bday[2]>=20 and $bday[1]>=1) and ($bday[2]<=18 and $bday[1]<=2)) {
$zodiacsign="Aquarius";
} else if (($bday[2]>=19 and $bday[1]>=2) and ($bday[2]<=20 and $bday[1]<=3)) {
$zodiacsign="Pisces";
} else {
$zodiacsign="N/A";
} 

Aries The Ram Mar. 21-Apr. 19
Taurus The Bull Apr. 20-May 20
Gemini The Twins May 21-June 21
Cancer The Crab June 22-July 22
Leo The Lion July 23-Aug. 22
Virgo The Virgin Aug. 23-Sept. 22
Libra The Balance Sept. 23-Oct. 23
Scorpio The Scorpion Oct. 24-Nov. 21
Sagittarius The Archer Nov. 22-Dec. 21
Capricorn The Goat Dec. 22-Jan. 19
Aquarius The Water Bearer Jan. 20-Feb. 18
Pisces The Fishes Feb. 19-Mar. 20

[Slynderdale]

never mind i got it