How to implement touch events on Canvas...

c.addEventListener("touchmove", on_touchmove, false);
c.addEventListener("touchstart", on_touchstart, false);
c.addEventListener("touchend", on_touchend, false);
...


var clicked = false;


function on_touchstart(ev) {
ev.preventDefault();
        Mouse.x = ev.touches[0].pageX;
        Mouse.y = ev.touches[0].pageY;
cliced = true;




}


function on_touchmove(ev) {
ev.preventDefault();
    Mouse.x = ev.touches[0].pageX;
    Mouse.y = ev.touches[0].pageY;
}




function on_touchend(ev){
clicked = false;
}