Login Vb.net with Browser -


i doing website login , having problem checking if login successful, because using completed document already. when make check see if logout button exists, page hasn't finished loading. here code:

imports system.net imports system.text imports system.io  public class form1      private sub futurebutton2_click(byval sender system.object, byval e system.eventargs) handles futurebutton2.click         if textbox1.text = ("") or             textbox2.text = ("") or             textbox3.text = ("") or             textbox4.text = ("") or             textbox5.text = ("") or             textbox6.text = ("")             msgbox("some information missing please fill boxes")          else              webbrowser1.navigate("http://combatarms.nexon.net/support/userabuse.aspx")             form2.show()          end if      end sub     private sub webbrowser2_documentcompleted(byval sender system.object, byval e system.windows.forms.webbrowserdocumentcompletedeventargs) handles webbrowser1.documentcompleted           dim username, password string         username = textbox1.text         password = textbox2.text         form2.futureprogressbar1.progress = 10         on error resume next         webbrowser1.document.all("userid").setattribute("value", textbox1.text)         form2.futureprogressbar1.progress = 20         webbrowser1.document.all("password").setattribute("value", textbox2.text)         form2.futureprogressbar1.progress = 30         webbrowser1.document.all("gnt_login_submit").invokemember("click")         form2.futureprogressbar1.progress = 40          if webbrowser1.statustext = ("done")              if (webbrowser1.document.all("btnlogin") nothing)          msgbox("works")            else            msgbox("wrong")  have worked on days. login working can't verify it.  help! 

edit:

use one:

do while wb.readystate <> webbrowserreadystate.complete     application.doevents()  loop 

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