Onclick event of button

I would like to add an Onclick event to one button (ShipEdit is the name of the button), I would like to redirect user by clicking this button to new page that is (../Account/MyAccount.aspx) and send 2 variables that is (LineItem.LineKey and shipment.ShipmentKey) with the URL:
I need to write a code in this module:
 
void repShipments_ItemDataBound(object sender, RepeaterItemEventArgs e)< ...