display_name = params[:display_name]
if target_user.nil? and !display_name.blank?
target_user = User.find(:first, :conditions => [ "visible = ? and display_name = ?", true, display_name])
display_name = params[:display_name]
if target_user.nil? and !display_name.blank?
target_user = User.find(:first, :conditions => [ "visible = ? and display_name = ?", true, display_name])