touch events to work with jquery ui draggable (using HP 4200tm windows 7)

jquery-draggable-touch.js

function touchHandler(event){
	var touches = event.changedTouches,
	first = touches[0],
	type = "";

	switch(event.type){
		case "touchstart": type = "mousedown"; break;
		case "touchmove":  type="mousemove"; break;
		case "touchend":   type="mouseup"; break;
		default: return;
	}
	var simulatedEvent = document.createEvent("MouseEvent");
	simulatedEvent.initMouseEvent(type, true, true, window, 1,
		first.screenX, first.screenY,
		first.clientX, first.clientY, false,
		false, false, false, 0/*left*/, null);

	first.target.dispatchEvent(simulatedEvent);
	event.preventDefault();
}
function touchInit(){
	document.addEventListener("touchstart", touchHandler, true);
	document.addEventListener("touchmove", touchHandler, true);
	document.addEventListener("touchend", touchHandler, true);
	document.addEventListener("touchcancel", touchHandler, true);    
}