I only know the object style name. How can I get and modify the size options?

[dublove]

I only know the object style name. How can I get and modify the size options?
Something simpler.
My image object style name is mypic, and I want to modify its width.
mypic.transformAttributeOptions.transformAttrWidth = 60;
I want to reassign it to 80,

Something like this:

if(transformAttributeOptions.transformAttrWidth !=80){  
transformAttributeOptions.transformAttrWidth =80;  
abc();  
}  
else{  
aaa();  
}

[rob day · Accepted solution]

I only know the object style name.

Use itemByName

var os = app.activeDocument.objectStyles.itemByName("AA");
os.transformAttributeOptions.transformAttrWidth = 80;

or

app.activeDocument.objectStyles.itemByName("AA").transformAttributeOptions.transformAttrWidth = 80;

[dublove]

Thank you very much.
Just as you said, I found this method.

[brian_p_dts]

Yes, because we showed this method in the other thread on this topic...