JS study Note 1

Event. srcelement can be seen literally with the following keywords: event, the source means: the source of the current event,
We can call various attributes like document. getelementbyid,
Some people often ask how to use event. srcelement in Firefox, which is described in detail here:
In ie, the event object has the srcelement attribute, but does not have the target attribute. In Firefox, the event object has the target attribute, but does not have the srcelement attribute. However, they play a similar role, namely:
Event. srcelement under event.tar get = IE in Firefox
Solution: Use OBJ (OBJ = event. srcelement? Event. srcelement: event.targettoken used to replace event.tar get under firefox.

It can be used to determine whether a button on the page is pressed
If (event. srcelement. Name = "flowid "){
Alert ("@@@@@@@@@");
}