Javascript prevents javascript events from bubbling and obtains control ID _ javascript skills

Javascript learning diary-prevents javascript events from bubbling and obtains the Control ID value 1. How to Prevent event bubbles

The Code is as follows:

// Non-IE
If (event & event. stopPropagation)
Event. stopPropagation ();
Else // IE
Window. event. cancelBubble = true;

2. Get the Control ID

The Code is as follows:

If (document. all ){
// IE
Alert (event. srcElement. tagName + ":" + event. srcElement. id );
}
Else {
// Firefox
Alert(event.tar get. tagName + ":" + event.tar get. id );
}