From Learn About the Ext JavaScript Library

Delayed by timeout

If you want to run a function by timeout, you can use Ext delay (API reference) ability.

Example:

var fn = function(arg1, arg2){
  Ext.Msg.alert('Delayed message', 'I ' + arg1 + ' Ext with ' + arg2);
}
 
fn.defer(10000, this, ['like','php']);

After 10 seconds, the function fn will be called and an alert box will popup with the text "I like Ext with php".