[рони]

difurios,

var checkbox = document.getElementById("checkbox");
			var checkbox2 = document.getElementById("checkbox2");
			var checkbox3 = document.getElementById("checkbox3");
            var count = document.getElementById("count");
            var result = document.getElementById("result");
            var price = 0;
		  checkbox.checked && (price += parseInt(checkbox.value));
		  checkbox2.checked && (price += parseInt(checkbox2.value))  ;
		  checkbox3.checked	&& (price += parseInt(checkbox3.value));
	      price += parseInt(count.value) * parseInt(result.value);
          result.value = price;