Multiple mx:Script blocks in a single mxml file?

I was just curious, I've inherited an application and I often see multiple mx:Script blocks in a single file. Sometimes they are separated:

mx:Script
mxml

mx:Script
mxml

and sometimes it's one after the other

mx:Script
/mx:Script

mx:Script
/mx:Script

Are there any reasons for this? More specifically, for performance/optimization? If there is no performance benefit, I'd like to consolidate all of the .as code together.
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coldchillinAsked:
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dgofmanCommented:
You can open mx:Script tag for each line, it will not effect to your executing performance. Because on the end MXMLC compiler will generate AS files anyway.
But , in some case you must declared multiple mx:Script declarartion.
One of the common reason implementation in the itemRenderer(s) mx:DataGrid. When you want to implement different business logic for each column. Oterwice you must create new class files, what is more common way.
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