// select elements
var elements = Array.from(document.querySelectorAll('svg .selector'));

// add event listeners
elements.forEach(function(el) {
   el.addEventListener("touchstart", start);
   el.addEventListener("mousedown",  start);
   el.addEventListener("touchmove",  move);
   el.addEventListener("mousemove",  move);
})

// event listener functions

function start(e){
  console.log(e);
  // just an example
}

function move(e){
  console.log(e);
  // just an example
}