how to move focus from one text box control to another text box control

Dear Sir,

I am beginner in developing Web Application. I have a form which contains 5 text box control and I want when page is loaded the focus goes to 1st Text box control after that i filled some text i want to use tab key or enter key to move the focus next text box control. but how to do please help me is it possible in code behind file, I am using vb.net language. so please show me finest way so that i can follow up in future.

Thanking You

Debasis Bag

Web forms do not have a settable Focus like Windows forms... however the Tab key will move the focus to the next Focus settable object in the webform (link, button, textbox, etc)..

Enter will often default as the submit button..