Sample Code for js constellation determination by date

Copy codeThe Code is as follows:
Function xingzuo (){
Var start = 1901, date = document. getElementById ("txtDay"). value, month = document. getElementById ("txtMonth"). value ;;
With (document. getElementById ("txtXZ ")){
If (month = 1 & date> = 20 | month = 2 & date <= 18) {value = "Aquarius ";}
If (month = 1 & date> 31) {value = "Huh? ";}
If (month = 2 & date> = 19 | month = 3 & date <= 20) {value = "Pisces ";}
If (month = 2 & date> 29) {value = "Say what? ";}
If (month = 3 & date> = 21 | month = 4 & date <= 19) {value = "Aries ";}
If (month = 3 & date> 31) {value = "OK. Whatever .";}
If (month = 4 & date> = 20 | month = 5 & date <= 20) {value = "Taurus ";}
If (month = 4 & date> 30) {value = "I'm soooo sorry! ";}
If (month = 5 & date> = 21 | month = 6 & date <= 21) {value = "Gemini ";}
If (month = 5 & date> 31) {value = "Umm... no .";}
If (month = 6 & date> = 22 | month = 7 & date <= 22) {value = "cancer ";}
If (month = 6 & date> 30) {value = "Sorry .";}
If (month = 7 & date> = 23 | month = 8 & date <= 22) {value = "Leo ";}
If (month = 7 & date> 31) {value = "Excuse me? ";}
If (month = 8 & date> = 23 | month = 9 & date <= 22) {value = "";}
If (month = 8 & date> 31) {value = "Yeah. Right .";}
If (month = 9 & date> = 23 | month = 10 & date <= 22) {value = "Libra ";}
If (month = 9 & date> 30) {value = "Try Again .";}
If (month = 10 & date> = 23 | month = 11 & date <= 21) {value = "scorpio ";}
If (month = 10 & date> 31) {value = "Forget it! ";}
If (month = 11 & date> = 22 | month = 12 & date <= 21) {value = "";}
If (month = 11 & date> 30) {value = "Invalid Date ";}
If (month = 12 & date> = 22 | month = 1 & date <= 19) {value = "Capricorn ";}
If (month = 12 & date> 31) {value = "No way! ";}
}
}