<select onchange="updateNrOfProductsInCart(24, this.value);">
<select onchange="updateNrOfProductsInCart(7, this.value);">
<select onchange="updateNrOfProductsInCart(53, this.value);">

$('.quantity-verification').each(function() {
// Variables and other code that helps below.
// I removed this as it would bload the page.

// Adjusting select option to correct value
$('.quantity-modifier-' + qvAlias + ' option').filter(function(){
    return this.text == qvQuantity;
}).attr("selected", "selected").parent().trigger('change');
// Updating the cart with the correct values.

console.log('qvTitle='+qvTitle + 'n' + 'qvQuantity'+qvQuantity + 'n' + 'qvAlias'+qvAlias );
// everything outputs perfectly in console log.
}); // end of each function