anchor.diff:  		 (:input :type "text"
   			 :class "form-control"
   			 :name "username"
  -			 :id "username")
  +			 :id "username"
  +			 :required "required")
   		 (:label :class "white-text" :for "username" "Username"))
   
   		 (:div :class "input-field col s6"
   		 (:input :type "password"
   			 :name "password"
   			 :class "form-control"
  -			 :id "password")
  +			 :id "password"
  +			 :required "required")
   		 (:label :class "white-text" :for "password" "Password"))
   
   		 (:div :class "input-field col s6"
   		 (:input :type "password"
   			 :class "form-control"
   			 :name "password-repeat"
  -			 :id "password-repeat")
  +			 :id "password-repeat"
  +			 :required "required")
   		 (:label :class "white-text" :for "password-repeat" "Repeat"))
   	        
   		 (:div :class "center"
  
positive.code: (defmacro standard-check-in (&key invoice)
    `(with-html-output (*standard-output* nil :indent t)
       (:div :class "row"
  	   (:div :class "input-field col s12 l6 m6"
  		 (:label :for "myInput" :class "black-text" "Search")
  	   (:input :type "text" :id "myInput" :class "black-text" :onkeyup "myFunction()"))
  	   (:ul :id "myUL"
  			  (dolist (item (remove-returned (invoice-item-list ,invoice)))
  			    (htm
  			     (:li
  			     (:div :class "col s12 m6 l6"
  				   (:div :class "card blue-grey"
  					 (:div :class "card-image"
  					       (:img :src (item-picture item) :class "materialboxed responsive-img")
  					       (:span :class "card-title black" (fmt "~A" (escape-string (item-description item)))))
  					 (:div :class "card-content"
  					       
  			    
  					       (:div :class "chip black-text" (fmt "Price: ~A" (escape-string (item-price item))))
  					       (:div :class "chip black-text"  (fmt "Quantity: ~A" (escape-string (item-quantity item))))
  			      (:div :class "card-action"
  			       (:form 
  					  :action "/check-in-item"
  
negative.code: 	        ,@navbar		   	       
  		(:div :class "container"
  		      (:div :class "section"
  			    ,@body
  	    (:footer :class "page-footer"
  		     (:div :class "container"
  			   (:div :class "row"
  		        
  				 (:h5 :class "center white-text" "Made with Powerful Parenthesis"))))))))))
  	   
  
  (defmacro standard-three-nine-hook ((&key bodythree) &body bodynine)
  