Drag system in a table

Question

I have created this table.I want to set a variable Winner(that means it is Black or Red).Which variable if is B will drag the P1B.png.If it is R it will drag the P2R.png. Here is my table (I tried to do dragging but I didn't managed to.I use w3school(https://www.w3schools.com/howto/howto_js_draggable.asp)

 <table class="b" border="30" bordercolor="blue" style="width: 100%" height="100" id="myT" >
            <tbody><tr>
            
                   <td> 1</td>
                   <td> 2</td>
                  <td> 3</td>
                   <td> 4</td>
                   <td> 5</td>
                   <td> 6</td>
                   <td> 7</td>
                   <td> 8</td>
                   <td> 9</td>
                   <td> 10</td>
                   <td> 11</td>
                   <td style="width: 12px; height: 10px;">12 
                   <br>
                   
                  a <img class="dragme" src="./images/P2R.png" class="b" alt="Norway" style="width:30%" >
                   <br>
                  b <img class="dragme"        src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   c<img class="dragme"        src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   d<img class="dragme"       src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   e<img class="dragme"         src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   f<img  class="dragme"       src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   g<img class="dragme"         src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   h<img class="dragme"         src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   i<img  class="dragme"       src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   k<img   class="dragme"      src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   l<img  class="dragme"       src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   m<img  class="dragme"       src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   n<img class="dragme"        src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   o<img class="dragme"        src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   p<img class="dragme"        src="./images/P2R.png" class="b" alt="Norway" style="width:30%">
                   
                   
                   
                   
                   
                   
                   </td>
                   
                        </tr>
                        
                        <td> 24
                        
                        
                               
                   <br>
                       
                   a <img  id="dragme"        src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   b <img  id="dragme"            src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   c<img id="dragme"                      src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   d<img  class="dragme"                    src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   e<img  class="dragme"                   src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   f<img class="dragme"                            src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   g<img    class="dragme" src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   h<img class="dragme"          src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   i<img    class="dragme" src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   k<img class="dragme"                 src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   l<img class="dragme"                 src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   m<img class="dragme"  src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   n<img class="dragme"               src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   o<img  class="dragme"          src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   <br>
                   p<img class="dragme"     src="./images/P1B.png" class="b" alt="Norway" style="width:30%">
                   
                   
                   
                    
                        </td>
                   <td> 23</td>
                   <td> 22</td>
                   <td> 21</td>
                   <td> 20</td>
                   <td> 19</td>
                   <td> 18</td>
                   <td> 17</td>
                   <td> 16</td>
                   <td> 15</td>
                   <td> 14</td>
                   
                   <td> 13
                   
                 
                   </td>
                        </tr>
                        </tbody>








  </div>

</div>

the javascript code is this :

  //Make the DIV element draggagle:
dragElement(document.getElementById("dragme"));

function dragElement(elmnt) {
  var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
  if (document.getElementById(elmnt.id + "header")) {
    /* if present, the header is where you move the DIV from:*/
    document.getElementById(elmnt.id + "header").onmousedown = dragMouseDown;
  } else {
    /* otherwise, move the DIV from anywhere inside the DIV:*/
    elmnt.onmousedown = dragMouseDown;
  }

  function dragMouseDown(e) {
    e = e || window.event;
    e.preventDefault();
    // get the mouse cursor position at startup:
    pos3 = e.clientX;
    pos4 = e.clientY;
    document.onmouseup = closeDragElement;
    // call a function whenever the cursor moves:
    document.onmousemove = elementDrag;
  }

  function elementDrag(e) {
    e = e || window.event;
    e.preventDefault();
    // calculate the new cursor position:
    pos1 = pos3 - e.clientX;
    pos2 = pos4 - e.clientY;
    pos3 = e.clientX;
    pos4 = e.clientY;
    // set the element's new position:
    elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
    elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
  }

  function closeDragElement() {
    /* stop moving when mouse button is released:*/
    document.onmouseup = null;
    document.onmousemove = null;
  }
}
  
  
  
  

First,I want to be able to drag them.Second,if that is possible I want to do a system dragging(because I will do it after that ).If a variable ( variable winner lets call it is == to B then I want to be able to drag ONLY the P1B.png) ,if variable it is == R only P2R.png).I tried to do it but I failed many times so one of my tries was this

<p id="demo"></p>

<script>
var winner;
switch (winner == B || winner == R ) {
  case 0:
   winner = ;
    break;
  case 1:
    winner = ";
    break;
  
  case  2:
    winner = "something went wrong";
}
document.getElementById("demo").innerHTML = "Player is playing now " + winner;
</script>