How to change this code in a javascript

[Frankie M]

With our limited knowledge we were able to exclude certain dates in a date delivery module based on weekday and time. See code below.

But now we want to exclude all Wednesdays and Saturdays in the next year if you select carrier 99.

Can someone please help us how to write that code?

Current code:

var selected_carrier = parseInt($('.delivery_option_radio:checked').val());
var weekdag = new Date().getDay();
var uur = new Date().getHours();
var vandaag = new Date();
var morgen = new Date();
morgen.setDate(vandaag.getDate()+1);
var exclmaand = morgen.getMonth()+1;
var excldag = morgen.getDate();
var excldatum = exclmaand + "-" + excldag;

// carrier is postnl
if (selected_carrier == 99) {
// weekdag 0 is zondag t/m 6 is zaterdag
if (weekdag > -1 && weekdag < 5) {
// na 23 uur
if (uur >= 23) {
disabledDays.push(excldatum);
} 
} 
}

if (selected_carrier == 99) {
// weekdag 5 is vrijdag
if (weekdag == 5) {
// na 10 uur
if (uur >= 10) {
disabledDays.push(excldatum);
} 
} 
}