How 2 Guru

How to using a javascript command to select and deselect a div tag content?
As I know, we can use a select() funtion to select text field value:
document.getElementById(‘username’).select();
But the above example does not work for a div or span tag.

For the div or span tag, it is pretty simply, just few lines command will do.
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Actually, I am a newbie for the oracle database. Never though it before I start my current job.
Lucky my company has a oracle expert & always help me to solve those problems. 

Today, just want to share some of my experience regarding the export & import for oracle.
I was taught to use the imp & exp command for import & export an oracle schema. 
Below is the imp & exp command examples:
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