login page using jquery ajax with asp.net ?

Question

Dear all,

 

i want create a login page after giveing username and password check it from database and redirect to welcome page using jqueary ajax with asp.net .
please ma new to this jqueary ajax am not understanding single one also ..i am seaching in google getting lots of examples but am not understading please

give me a simple example ..with jqueary ajax with asp.net..