get cursor position on web

andtestfile.js

// this is a test file indeed

getPosition.js

function getPosition(e) {
    var posx = 0;
    var posy = 0;

    if (!e) var e = window.event;
    
    if (e.pageX || e.pageY) {
      posx = e.pageX;
      posy = e.pageY;
    } else if (e.clientX || e.clientY) {
      posx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
      posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
    }

    return {
      x: posx,
      y: posy
    }
  }