[рони]

Gozar,

<script>
var x = 5, y = 5, x2 = 2, y2 = -10;
var time = Math.abs(x - x2);
for (var i=0; i<=time; i++)  {
  var delta = i/time ;
  var a =  delta*(x2 - x) + x;
  var b =  delta*(y2 - y) + y;
  document.write([a,b]+"<br>")
}
</script>