Experimental sliding menu in Titanium

experimental-sliding-menu.js

this.currentWindow.addEventListener('touchstart', function(e) {
    		if (Alloy.Globals.UI.data.unmovableElements.indexOf(e.source.toString())>=0) return;
			if (true===Alloy.Globals.UI.leftMenuOpen || true===Alloy.Globals.UI.rightMenuOpen) return;
			Alloy.Globals.UI.data.menuX = e.x;
			Alloy.Globals.UI.data.deltaX = 0;
		});

		this.currentWindow.addEventListener('touchmove', function(e) {

			if (Alloy.Globals.UI.data.unmovableElements.indexOf(e.source.toString())>=0) return;
			if (true===Alloy.Globals.UI.leftMenuOpen || true===Alloy.Globals.UI.rightMenuOpen) return;
			if (!e.x) return;

			var deltaX = parseInt(e.x-Alloy.Globals.UI.data.menuX, 10);
			Alloy.Globals.UI.data.deltaX += deltaX;

			if (Alloy.Globals.UI.data.deltaX>260) Alloy.Globals.UI.data.deltaX = 260;
			else if (Alloy.Globals.UI.data.deltaX<-260) Alloy.Globals.UI.data.deltaX = -260;

			if (Alloy.Globals.UI.data.deltaX>=0) {
				Alloy.Globals.UI.leftMenu.left = 0;
				Alloy.Globals.UI.rightMenu.right = -260;
			} else {
				Alloy.Globals.UI.leftMenu.left = -260;
				Alloy.Globals.UI.rightMenu.right = 0;
			}

			Alloy.Globals.UI.currentWindow.animate({
				left: Alloy.Globals.UI.data.deltaX,
				right: -Alloy.Globals.UI.data.deltaX,
				duration: 30
			});

		});

		this.currentWindow.addEventListener('touchend', function(e) {
			if (Alloy.Globals.UI.data.unmovableElements.indexOf(e.source.toString())>=0) return;
			if (true===Alloy.Globals.UI.leftMenuOpen) {
				Alloy.Globals.UI.closeLeftMenu();
			} else if (true===Alloy.Globals.UI.rightMenuOpen) {
				Alloy.Globals.UI.closeRightMenu();
			} else {
				var distance = Alloy.Globals.UI.data.deltaX;
				if (distance>Alloy.Globals.UI.OPEN_MENU_MIN) {
					Alloy.Globals.UI.openLeftMenu();
				} else if (distance<-Alloy.Globals.UI.OPEN_MENU_MIN) {
					Alloy.Globals.UI.openRightMenu();
				} else {
					Alloy.Globals.UI.closeRightMenu();
					Alloy.Globals.UI.closeLeftMenu();
				}
			}
		});