function (){
countScreen.ionRangeSlider({
hide_min_max: false,
keyboard: true,
min: 1,
max: 15,
from: 1,
type: "single",
step: 1,
onChange: function(){
countScreen = $(".irs-single").text();
countScreenInput.val(countScreen);
countScreenValue = Number(countScreenInput.val());
priceScreen = countScreenValue * priceOneScreen;
price.val(priceScreen);
}
});
}