' Ext.eventobject ' is empty or not an object's error cause and workaround

Source: Internet
Author: User

IE7.0, Ext JS 2.2

Error behavior:
IE Browser error:
Line: 1670
Error: ' Ext.eventobject ' is empty or not an object
Code: 0
Firefox browser is OK.

Error Reason:
Many times in the Web page to introduce Ext JS Lib.
I am a page set up some frame,frame all the pages are referenced Ext JS JS package.

Delete Extra references (I did)
You can also test whether it has been introduced before introduction (for example, to detect the presence of Ext objects, without testing)

Ext JS JS package can not be introduced many times, or it will produce a series of anomalies, such as the panel collapse time also retains the following space and so on.

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