anchor.diff:  		-var requiredclass=itemclass
   
   	.b-form__item(class=errorclass, class="b-form__item_#{type}", class=requiredclass, class=itemclass)
  -		+bem-input-label(labeltext)
  +		+bem-input-label(labeltext, name)
   
   		.b-form__input
   			block
  
positive.code: 
  	if (type == "text")
  		+bem-input(name, labeltext, value, placeholder, itemclass, required, hint, errors)
  	
  	else if (type == "file")
  		+bem-file(name, labeltext, value, placeholder, itemclass, required, hint, errors)
  
negative.code: 		.clear
  
  
  mixin bem-captcha(name, labeltext, itemclass, required, image)
  	if (errors)
  		-var errorclass='b-form_error'
  
  