$(function(){
 $("#backurl").val( location.href )
 $("#exitbtn").attr( "href","/logout.jsp?url="+location.href )
 $.cookie('username')?login():unlogin();
 function login(){
   $("#unlogin").hide();
   $("#logined").show();
   $("#strongname").text( $.cookie('username') );
 }						
 function unlogin(){
   $("#unlogin").css("display","block");
   $("#logined").css("display","none");
 } 
});