javascript - How to add different days on one of the following countdown time function? -

the following javascript code contains 3 functions 2 of counts times daily , csw timer occurs once every 7 days (sunday), however, want make bdwtimer() not everyday wednesday (3) , friday(5). struggling how since @ moment it's everyday specific hours? how can appreciated ... time!

for example: if monday -- bdw timer should display 2(days until wednesday):x hours:x minutes:x seconds .. if wednesday should display 0 days , rest , if done day (total of 4 events) move on next friday, again: 2(days until wednesday):x hours:x minutes:x seconds ..

<script> var currdate = new date(); var currdate = new date(); var day = currdate.getday(); var hrs = currdate.gethours(); var hrs0 = currdate.gethours(); var hrs00 = currdate.gethours(); var mins = currdate.getminutes(); var secs = currdate.getseconds(); var cswday = 7; var cswhrs = 19; var fthrs1 = 6; var fthrs2 = 14; var fthrs3 = 22; var bdwhrs1 = 5; var bdwhrs2 = 11; var bdwhrs3 = 17; var bdwhrs4 = 23; var ftmins1 = 59; var ftsecs1 = 60; var hrsout = 0; var hrsout2 = 0;  var hrs1 = fthrs1 - hrs; var hrs2 = fthrs2 - hrs; var hrs3 = fthrs3 - hrs;  var hrs01 = bdwhrs1 - hrs0; var hrs02 = bdwhrs2 - hrs0; var hrs03 = bdwhrs3 - hrs0; var hrs04 = bdwhrs4 - hrs0;  var day = cswday - day; var hrs001 = cswhrs - hrs00;  if (day == 7)     day = 0;  if ((hrs > 22) || ((hrs >= 0) && (hrs < 7))) {     if (hrs > 22)         hrsout = 7;     else         hrsout = hrs1; } if ((hrs > 6) && (hrs < 15))     hrsout = hrs2; if ((hrs > 14) && (hrs < 23))     hrsout = hrs3;  if ((hrs0 > 23) || ((hrs0 >= 0) && (hrs0 < 6))) {     if (hrs0 > 23)         hrsout2 = 6;     else         hrsout2 = hrs01; } if ((hrs0 > 5) && (hrs0 < 12))     hrsout2 = hrs02; if ((hrs0 > 11) && (hrs0 < 18))     hrsout2 = hrs03; if ((hrs0 > 17) && (hrs0 <= 23))     hrsout2 = hrs04;  mins = ftmins1 - mins; secs = ftsecs1 - secs;  var counter=setinterval(fttimer, 1000); var counter=setinterval(bdwtimer, 1000); var counter=setinterval(cswtimer, 1000);  function fttimer() {     secs=secs-1;      if (hrsout < 0)     {         clearinterval(counter);     }     else if (mins < 0)     {         secs = 59;         mins = 59;         hrsout = hrsout - 1;         return;     }     else if (secs < 0)     {         secs = 59;         mins = mins - 1;         return;     }      if (secs < 10 && mins < 10 && hrsout < 10)         document.getelementbyid("fttimer").innerhtml="0"+hrsout+":0"+mins+":0"+secs;     else if (mins < 10 && hrsout < 10)         document.getelementbyid("fttimer").innerhtml="0"+hrsout+":0"+mins+":"+secs;     else if (secs < 10 && hrsout < 10)         document.getelementbyid("fttimer").innerhtml="0"+hrsout+":"+mins+":0"+secs;     else if (secs < 10 && mins < 10)         document.getelementbyid("fttimer").innerhtml=hrsout+":0"+mins+":0"+secs;     else if (hrsout < 10)         document.getelementbyid("fttimer").innerhtml="0"+hrsout+":"+mins+":"+secs;     else if (mins < 10)         document.getelementbyid("fttimer").innerhtml=hrsout+":0"+mins+":"+secs;          else if (secs < 10)         document.getelementbyid("fttimer").innerhtml=hrsout+":"+mins+":0"+secs;     else         document.getelementbyid("fttimer").innerhtml=hrsout+":"+mins+":"+secs; }  function bdwtimer() {     if (hrsout2 < 0)     {         clearinterval(counter);     }     else if (mins < 0)     {         secs = 59;         mins = 59;         hrsout2 = hrsout2 - 1;         return;     }     else if (secs < 0)     {         secs = 59;         mins = mins - 1;         return;     }      if (secs < 10 && mins < 10 && hrsout2 < 10)         document.getelementbyid("bdwtimer").innerhtml="0"+hrsout2+":0"+mins+":0"+secs;     else if (mins < 10 && hrsout2 < 10)         document.getelementbyid("bdwtimer").innerhtml="0"+hrsout2+":0"+mins+":"+secs;     else if (secs < 10 && hrsout2 < 10)         document.getelementbyid("bdwtimer").innerhtml="0"+hrsout2+":"+mins+":0"+secs;     else if (secs < 10 && mins < 10)         document.getelementbyid("bdwtimer").innerhtml=hrsout2+":0"+mins+":0"+secs;     else if (hrsout2 < 10)         document.getelementbyid("bdwtimer").innerhtml="0"+hrsout2+":"+mins+":"+secs;     else if (mins < 10)         document.getelementbyid("bdwtimer").innerhtml=hrsout2+":0"+mins+":"+secs;            else if (secs < 10)         document.getelementbyid("bdwtimer").innerhtml=hrsout2+":"+mins+":0"+secs;     else         document.getelementbyid("bdwtimer").innerhtml=hrsout2+":"+mins+":"+secs; }  function cswtimer() {     if (day < 0)     {         day = 6;         return;     }     else if (hrs001 < 0)     {         if (hrs001 == -1)             hrs001 = 23;         else if (hrs001 == -2)             hrs001 = 22;         else if (hrs001 == -3)             hrs001 = 21;         else if (hrs001 == -4)             hrs001 = 20;         day = day - 1;         return;     }     else if (mins < 0)     {         secs = 59;         mins = 59;         hrs001 = hrs001 - 1;         return;     }     else if (secs < 0)     {         secs = 59;         mins = mins - 1;         return;     }      if (secs < 10 && mins < 10 && hrs001 < 10)         document.getelementbyid("cswtimer").innerhtml=day+":0"+hrs001+":0"+mins+":0"+secs;     else if (mins < 10 && hrs001 < 10)         document.getelementbyid("cswtimer").innerhtml=day+":0"+hrs001+":0"+mins+":"+secs;     else if (secs < 10 && hrs001 < 10)         document.getelementbyid("cswtimer").innerhtml=day+":0"+hrs001+":"+mins+":0"+secs;     else if (secs < 10 && mins < 10)         document.getelementbyid("cswtimer").innerhtml=day+":"+hrs001+":0"+mins+":0"+secs;     else if (hrs001 < 10)         document.getelementbyid("cswtimer").innerhtml=day+":0"+hrs001+":"+mins+":"+secs;     else if (mins < 10)         document.getelementbyid("cswtimer").innerhtml=day+":"+hrs001+":0"+mins+":"+secs;             else if (secs < 10)         document.getelementbyid("cswtimer").innerhtml=day+":"+hrs001+":"+mins+":0"+secs;     else         document.getelementbyid("cswtimer").innerhtml=day+":"+hrs001+":"+mins+":"+secs; } </script>