if else statement questions

I setting up a pdf using DC Pro.

I have a drop down box “A” with a list of DODAACs alphanumeric box and if you select a DODAAC the text box “B” will reflect the corresponding Unit Name of that DODAAC. I have this script but I have over 30 DODAAC and units and I keep getting an error “SyntaxError missing ) after condition 21:at line 22”

All lines are exactly the same format, only difference is the DODAAC and Unit Name.

if (event.value=="W90WQ1") this.getField("Unit") .value = "7th MSC"; 

else if (event.value=="W90Z6S") this.getField("Unit").value = "361ST CA BDE"; 

else if (event.value=="W58193") this.getField("Unit").value = "457TH CA BN";

else if (event.value=="W9111P") this.getField("Unit").value = "457TH A / CO";

else if (event.value=="W9111L") this.getField("Unit").value = "457TH B / CO";

else if (event.value=="W9113R") this.getField("Unit").value = "457TH C / CO";

else if (event.value=="W91Z4A") this.getField("Unit").value = "457TH D / CO";

else if (event.value=="W90WQ4") this.getField("Unit").value = "773RD CST";

else if (event.value=="W50NKZ") this.getField("Unit").value = "510th RSG";

else if (event.value=="W50NL2") this.getField("Unit").value = "83rd CSSB";

else if (event.value=="W58D6J") this.getField("Unit").value = "446TH TRANS BN";

else if (event.value==" W50NL8") this.getField("Unit").value = " 530th TRANS DET";

else if (event.value=="W50NL8") this.getField("Unit").value = "603th TRANS DET";

else if (event.value=="W50NLB") this.getField("Unit").value = "793RD  TRANS DET";

else if (event.value==" W81NHT") this.getField("Unit").value = "1177TH TRANS DET";

else if (event.value=="W811FM") this.getField("Unit").value = "341ST TRANS DET";

else if (event.value=="W58D6H") this.getField("Unit").value = "1172ND  TRANS DET";

else if (event.value=="W50NL5") this.getField("Unit").value = "MSU-E";

else if (event.value=="W813U4") this.getField("Unit").value = "7TH ILE";

else if (event.value=="WK4TUP") this.getField("Unit").value = "209TH DLD";

else if (event.value== W912FA") this.getField("Unit").value = "2500TH DLD";

else if (event.value=="W90CS4") this.getField("Unit").value = "88TH CHAP DET";

else if (event.value=="W90CS7") this.getField("Unit").value = "89TH CHAP DET";

else this.getField("Unit").value = " ";