Close pop up on back button

Question

I want to close pop up on click of back button for mobile. I implemented this using onhashchange:

window.onhashchange = function (event) {

};

Answer 1

This could be done easily using Apache Cordova but not sure if you are using it to show your page in webview.

function onBackKeyDown(e) {
  e.preventDefault();

}
document.addEventListener("backbutton", onBackKeyDown, false);

http://cordova.apache.org/docs/en/2.4.0/cordova_events_events.md.html#backbutton