The value of listeners text box, perform a custom event when the value is changed

1  / * *
 2  * binding event to the input box
 . 3  * * @param {} the fieldId field input box ID
 . 4  * * @param {Event} eventFn check function
 . 5   * / 
. 6  function bindCheckEventOnInput (the fieldId, eventFn) {
 . 7      var oldCheckinput2 window.checkinput2 =; // store original check function 
. 8      window.checkinput2 = function (EID, eSpanId, viewType) {
 . 9          iF (EID == the fieldId) { // when the field id is the specified id, perform a custom event 
10              eventFn ( ); 
 . 11          }               
 12 is          return oldCheckinput2 (EID, eSpanId, viewType);// implementation of the original check function 
13      };
 14 }

Means ecology8 native check function, performing a custom operation after the value of the input box is changed. Call example:

bindCheckEventOnInput ( "field12345", function () { 
    Alert ( "value change!" ); 
});