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  @ssawyer, 
function handlerInput(event) {
            this.classList.add("input-checked-js");
            if (this).classList.contains("input-checked-js") {
                let replace = inputHidden.value;
                let string = this.value;
                this.value = string.replace(replace, '');
            } else {
            inputHidden.value += this.value;
            inputHidden.value += '; ';
}
}