var Head = {
UserLogon:function(id,username,userSource,callback,context){return new ajax_request(this.url + '?_method=UserLogon&_session=no','id=' + enc(id)+ '\r\nusername=' + enc(username)+ '\r\nuserSource=' + enc(userSource),callback, context);},
UserLogout:function(callback,context){return new ajax_request(this.url + '?_method=UserLogout&_session=no','',callback, context);},
UserName:function(callback,context){return new ajax_request(this.url + '?_method=UserName&_session=no','',callback, context);},
url:'/ajax/Exam.Web.Controls.Head,Exam.Web.ashx'
}