There are many discusses in CRM Forum, about how to setting focus to a Tab?
For example, I want the default tab1Tab to be the default tab when I open a record.
So if you put this code in onLoad() event:
document.getElementById('tab1Tab').focus();
It doesn't work as you expected.
But, if you use:
crmForm.all.tab1Tab.click();
It will work like a dream. :)
