support.touch = "ontouchstart" in window;
...
if (support.touch){
	if (!support.mobileOS) {
		support.mousedown = "mousedown touchstart";
		support.mouseup = "mouseup touchend";
		support.mousemove = "mousemove touchmove";
		support.mousecancel = "mouseleave touchcancel";
		support.click = "click touchend";
		support.resize = "resize";
	} else{
		support.mousedown = "touchstart";
		support.mouseup = "touchend";
		support.mousemove = "touchmove";
		support.mousecancel = "touchcancel";
		support.click = "touchend";
		support.resize = "orientationchange";
	}
} else ...