Javascript on mobile os, android and ipad

Hello I am trying to do a javascript function compatible on android and ipad, but i notice that android doesnt support ongesture** events? 1.It's really true?

.ongesturestart=function(e){
.ongesturechange=function(e){
.ongestureend=function(e){

2.Since I cant buy niether an Android system nor a Ipad,开发者_Python百科 is there any Android/Ipad simulator for pc/windows/linux around the web? I need them for developenig and simulating web application based on touch/gestures events.

3.Is there possible that google hasnt develop chrome for android platform? and firefox for android/Ipad? Thanks

1) These are new events added to iOS's version of WebKit. They haven't yet propagated to Android.

2) There is an Android simulator as part of the Android SDK. The iPad simulator is Mac only. But neither will tell you the true performance of your code--you need a device to accurately test your work.

3) Chrome is a desktop browser; Android's built-in browser is roughly equivalent. Firefox is a third-party browser and Google is not responsible for developing it. The very first hit for the Google search "firefox android", however, is a link to a Firefox Android beta. Search engines are your friends.