VB Code Help

[Karizan]

Hey guys good VB Coder Help me

.SetAttribute

What is SetAttribute ?
also what is: .invokemember?
Thanks !
From Codes:

Webbrowser1.document.GetElementById("").SetAttribute("Value",textbox.text)
Webbrowser1.document.GetElementById("").invokemember("Value",textbox1.text)

[Karizan]

Seems no good coder can help me here