[j0hnik]

var tirazh = document.querySelector("#tirazh"),
		razmer = document.querySelector("#razmer"),
		nanesenie = document.querySelector("#nanesenie"),
		cvet = document.querySelector("#cvet"),
		summ = 0;

		document.querySelector("button").onclick=function(){
			if (tirazh.value == '1' && razmer.value  == 'size1' && nanesenie.value  == '1' && cvet.value == 'белый') summ = 500;
			else if (tirazh.value == '1' && razmer.value  == 'size1' && nanesenie.value  == '2' && cvet.value == 'белый') summ = 600;
			//итд
			document.querySelector("#result").textContent = summ;
		};