Product Options dropdown and JQueryValidation custom field

<script >
(function($) {
$(document).ready(function(){
        $("select").change(function(){
        $(this).find("option:selected").each(function(){          
        if($(this).attr("value")=="31"){
           $('input[id=alto_lw]').val("900");
            $("hikashop_product_form").validate(
                  {
                    rules: 
                    {
                     "data[item][alto_lw]": /** Brackets: https://jqueryvalidation.org/reference/#link-fields-with-complex-names-(brackets-dots)**/
                      {
                      required: true,
                      range:[0,2200]
                      }
                    }
               });	
        }
        else if($(this).attr("value")=="32"){
              $('input[id=alto_lw]').val("2200");
            $("hikashop_product_form").validate(
                  {
                    rules: 
                    {
                    "data[item][alto_lw]":  
                      {
                      required: true,
                      range:[2201,2500]
                      }
                    }
               });	 
        }
            else if($(this).attr("value")=="33"){
            $('input[id=alto_lw]').val("2500");
            $("hikashop_product_form").validate(
                  {
                    rules: 
                    {
                    "data[item][alto_lw]": 
                      {
                      required: true,
                      range:[2501,9999]
                      }
                    }
               });	 
        }            
        });
    }).change();
});
})(jQuery);    
</script>

$("hikashop_product_form").validate(

$("#hikashop_product_form").validate(

<!-- HIKA-Validator -->
<!--include jQuery Validation -->
(function($) {
$(document).ready(function(){
	var $modelSelector = $('#hikashop_product_option_0'); /** value select dropdown name **/
	var heightFieldName = 'data[item][alto_lw]'; /** custom field name **/
	var $heightField = $('input[name="' + heightFieldName + '"]');
	var $form = $('form[name="hikashop_product_form"]'); /** form name **/
	var $addToCartButton = $('.hikabtn.hikacart:not("fake")');/** css hika configuration / system / display / extra css **/

    var modelRules = {
    	'31' : { /** value product options **/
    		defaultValue: 900,
    		rules : {
    			required: true,
    			range: [1,2200]
    		}
    	},
    	'32' : {
    		defaultValue: 2201,
    		rules : {
    			required: true,
    			range: [2201,2500]
    		}
    	},
    	'33' : {
    		defaultValue: 2501,
    		rules : {
    			required: true,
    			range: [2501,9999]
    		}
    	}
    }

	function onModelChanged()
	{
		var selectedModel = $modelSelector.find("option:selected").val();
		if (!modelRules.hasOwnProperty(selectedModel)) {
			return;
		}
		$heightField.val(modelRules[selectedModel]['defaultValue']).trigger('input');
	}

	function showHeightError(validRange)
	{
		$heightField.after(
			'<small class="js-height-error" style="background-color:#EF421E; color: white; max-width:200px; position:absolute; padding:7px 5px;">'
			+ ' Este modelo solo acepta valores entre ' + validRange[0] + ' y ' + validRange[1] + '.</small>'
		);
	}

	function hideAddToCartButton()
	{
		var fakeButton = $addToCartButton.clone()
			.addClass('fake')
			.attr('onclick', 'return false;')
			.attr('href', '#')
			.css({'opacity': '0.5'});

		$addToCartButton.after(fakeButton);
		$addToCartButton.css({'display': 'none'});
	}

	function showAddToCartButton()
	{
		$('.hikabtn.hikacart.fake').remove();
		$addToCartButton.css({'display': 'inline-block'});
	}

	function validateHeight()
	{
		var selectedModel = $modelSelector.find("option:selected").val();
		var selectedHeight = parseInt($heightField.val());

		// Remove any previous error message
		$('.js-height-error').remove();

		if (!modelRules.hasOwnProperty(selectedModel)) {

			hideAddToCartButton();
			return false;
		}

		var validationRules = modelRules[selectedModel]['rules']

		if (!selectedHeight || selectedHeight < validationRules['range'][0] || selectedHeight > validationRules['range'][1]) {
			showHeightError(validationRules['range']);
			hideAddToCartButton();

			return false;
		}

		showAddToCartButton();

		return true;
	}

    $modelSelector.on('change', function(){
       	onModelChanged();
    }).trigger('change');

	$heightField.on('input', function(){
		validateHeight();
	}).trigger('input');

	$form.submit(function( event ) {
		if (!validateHeight()) {
			event.preventDefault();
		}
	});
});
})(jQuery);