$(document).ready(function() {

//toggle model dropdowns
	$("#app-make").change(function() {
		if($('option:selected', this).val() == "Utility"){
			$('#u-model').attr("disabled", false);
			$('#u-model').show();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Utility Pumped"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').show();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Utility Combi"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').show();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').removeClass("greyed-p");
			$('.hardtest-l').removeClass("greyed-l");
			$('.cbsh').removeClass("greyed-p");
			$('.water').removeClass("greyed-i");
			$('#hardtest-yes').attr("disabled", false);
			$('#hardtest-no').attr("disabled", false);
			$('#hardreq-yes').attr("disabled", false);
			$('#hardreq-no').attr("disabled", false);
			$('#pressvalv-yes').attr("disabled", false);
			$('#pressvalv-no').attr("disabled", false);
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('#pressvalv-set').attr("disabled", true);
			$('#hardtype').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('#hardtype').addClass("greyed-i");
			$('#pressvalv-set').addClass("greyed-i");
			$('.hardtreat-l').addClass("greyed-l");
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", false);
			$('#mains-temp').attr("disabled", false);
			$('#dom-flow').attr("disabled", false);
			$('#dom-temp').attr("disabled", false);
		}
		else if($('option:selected', this).val() == "Kabin Pak"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').show();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Kabin Pak Pumped"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').show();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Kabin Pak Combi"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').show();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').removeClass("greyed-p");
			$('.hardtest-l').removeClass("greyed-l");
			$('.cbsh').removeClass("greyed-p");
			$('.water').removeClass("greyed-i");
			$('#hardtest-yes').attr("disabled", false);
			$('#hardtest-no').attr("disabled", false);
			$('#hardreq-yes').attr("disabled", false);
			$('#hardreq-no').attr("disabled", false);
			$('#pressvalv-yes').attr("disabled", false);
			$('#pressvalv-no').attr("disabled", false);
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('#pressvalv-set').attr("disabled", true);
			$('#hardtype').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('#hardtype').addClass("greyed-i");
			$('#pressvalv-set').addClass("greyed-i");
			$('.hardtreat-l').addClass("greyed-l");
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", false);
			$('#mains-temp').attr("disabled", false);
			$('#dom-flow').attr("disabled", false);
			$('#dom-temp').attr("disabled", false);
		}
		else if($('option:selected', this).val() == "Boilerhouse"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').show();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Bluebird"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').show();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Whitebird"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').show();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == "Goldbird"){
			$('#u-model').attr("disabled", false);
			$('#u-model').hide();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').show();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
			//togglecombi boilers section
			$('#cmbo').addClass("greyed-p");
			$('.hardtest-l').addClass("greyed-l");
			$('.cbsh').addClass("greyed-p");
			$('.water').addClass("greyed-i");
			$('#hardtest-yes').attr("disabled", true);
			$('#hardtest-no').attr("disabled", true);
			$('#hardreq-yes').attr("disabled", true);
			$('#hardreq-no').attr("disabled", true);
			$('#pressvalv-yes').attr("disabled", true);
			$('#pressvalv-no').attr("disabled", true);
			$('#hardtest-yes').attr("checked", false);
			$('#hardtest-no').attr("checked", false);
			$('#hardreq-yes').attr("checked", false);
			$('#hardreq-no').attr("checked", false);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('#pressvalv-yes').attr("checked", false);
			$('#pressvalv-no').attr("checked", false);
			$('.hardtreat-l').addClass("greyed-l");
			$('#hardtreat-yes').attr("disabled", true);
			$('#hardtreat-no').attr("disabled", true);
			$('.hardtype-l').addClass("greyed-l");
			$('#hardtype').addClass("greyed-i");
			$('#hardtype').attr("disabled", true);
			$('#hardtreat-yes').attr("checked", false);
			$('#hardtreat-no').attr("checked", false);
			$('.pressvalv-l').addClass("greyed-l");
			$('#pressvalv-set').addClass("greyed-i");
			$('#pressvalv-set').attr("disabled", true);
			$('#pressvalv-set').val("");
			$('#hardtype').val("");
			$('#mains-flow').val("");
			$('#mains-temp').val("");
			$('#dom-flow').val("");
			$('#dom-temp').val("");
			$('#mains-flow').attr("disabled", true);
			$('#mains-temp').attr("disabled", true);
			$('#dom-flow').attr("disabled", true);
			$('#dom-temp').attr("disabled", true);
		}
		else if($('option:selected', this).val() == 0){
			$('#u-model').attr("disabled", true);
			$('#u-model').show();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
		else{
			$('#u-model').attr("disabled", true);
			$('#u-model').show();
			$('#up-model').hide();
			$('#uc-model').hide();
			$('#k-model').hide();
			$('#kp-model').hide();
			$('#kc-model').hide();
			$('#b-model').hide();
			$('#bb-model').hide();
			$('#wb-model').hide();
			$('#gb-model').hide();
			$("#u-model option[value='0']").attr("selected", "selected");
			$("#up-model option[value='0']").attr("selected", "selected");
			$("#uc-model option[value='0']").attr("selected", "selected");
			$("#k-model option[value='0']").attr("selected", "selected");
			$("#kp-model option[value='0']").attr("selected", "selected");
			$("#kc-model option[value='0']").attr("selected", "selected");
			$("#b-model option[value='0']").attr("selected", "selected");
			$("#bb-model option[value='0']").attr("selected", "selected");
			$("#wb-model option[value='0']").attr("selected", "selected");
			$("#gb-model option[value='0']").attr("selected", "selected");
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});	

// toggle cleanser
	$('#flush-yes').click(function() {
	   $('#cleanser').attr("disabled", false);
	   $('#cleanser').removeClass("greyed-i");
	   $('#cleanser-l').removeClass("greyed-l");
	});

	$('#flush-no').click(function() {
	   $('#cleanser').attr("disabled", true);
	   $('#cleanser').addClass("greyed-i");
	   $('#cleanser-l').addClass("greyed-l");
	   $('#cleanser').val("");
	});

// toggle inhibitor
	$('#inhib-yes').click(function() {
	   $('#inhibitor').attr("disabled", false);
	   $('#inhibitor').removeClass("greyed-i");
	   $('#inhibitor-l').removeClass("greyed-l");
	});

	$('#inhib-no').click(function() {
	   $('#inhibitor').attr("disabled", true);
	   $('#inhibitor').addClass("greyed-i");
	   $('#inhibitor-l').addClass("greyed-l");
	   $('#inhibitor').val("");
	});

// toggle bypass screw
	$('#two-pipe').click(function() {
	   $('#bypass-screw-yes').attr("disabled", false);
	   $('#bypass-screw-no').attr("disabled", false);
	   $('#bypass-screw-l').removeClass("greyed-l");
	   $('#bs-yl').removeClass("greyed-l");
	   $('#bs-nl').removeClass("greyed-l");
	});
	
	$('#de-aero').click(function() {
	   $('#bypass-screw-yes').attr("disabled", false);
	   $('#bypass-screw-no').attr("disabled", false);
	   $('#bypass-screw-l').removeClass("greyed-l");
	   $('#bs-yl').removeClass("greyed-l");
	   $('#bs-nl').removeClass("greyed-l");
	});

	$('#one-pipe').click(function() {
	   $('#bypass-screw-yes').attr("disabled", true);
	   $('#bypass-screw-no').attr("disabled", true);
	   $('#bypass-screw-l').addClass("greyed-l");
	   $('#bs-yl').addClass("greyed-l");
	   $('#bs-nl').addClass("greyed-l");
	   $('#bypass-screw-yes').attr("checked", false);
	   $('#bypass-screw-no').attr("checked", false);
	});
	
	// toggle sealed systems		
	$('#seal-syst').click(function() {
	   $('.ss').attr("disabled", false);
	   $('#sso').removeClass("greyed-p");
	   $('.unit').removeClass("greyed-l");
	   $('.ss').removeClass("greyed-i");
	});
	
	$('#open-vent').click(function() {
	   $('.ss').attr("disabled", true);
	   $('.ss').val("");
	   $('#sso').addClass("greyed-p");
	   $('.unit').addClass("greyed-l");
	   $('.ss').addClass("greyed-i");
	});

//toggle condensing boilers
	$("#u-model").change(function() {
		if($('option:selected', this).val() == "U70HE" || $('option:selected', this).val() == "U90HE" || $('option:selected', this).val() == "U120HE" || $('option:selected', this).val() == "U150HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#up-model").change(function() {
		if($('option:selected', this).val() == "UP70HE" || $('option:selected', this).val() == "UP90HE" || $('option:selected', this).val() == "UP120HE" || $('option:selected', this).val() == "UP150HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#uc-model").change(function() {
		if($('option:selected', this).val() == "UC70HE" || $('option:selected', this).val() == "UC90HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#k-model").change(function() {
		if($('option:selected', this).val() == "K70HE" || $('option:selected', this).val() == "K90HE" || $('option:selected', this).val() == "K120HE" || $('option:selected', this).val() == "K150HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#kp-model").change(function() {
		if($('option:selected', this).val() == "KP70HE" || $('option:selected', this).val() == "KP90HE" || $('option:selected', this).val() == "KP120HE" || $('option:selected', this).val() == "KP150HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#kc-model").change(function() {
		if($('option:selected', this).val() == "KC70HE" || $('option:selected', this).val() == "KC90HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	$("#b-model").change(function() {
		if($('option:selected', this).val() == "B70HE" || $('option:selected', this).val() == "B90HE" || $('option:selected', this).val() == "B120HE"){
			$('#drain-yes').attr("disabled", false);
			$('#drain-no').attr("disabled", false);
			$('#cbo').removeClass("greyed-p");
			$('.dd').removeClass("greyed-l");
		}
		else{
			$('#drain-yes').attr("disabled", true);
			$('#drain-no').attr("disabled", true);
			$('#cbo').addClass("greyed-p");
			$('.dd').addClass("greyed-l");
			$('#drain-yes').attr("checked", false);
			$('#drain-no').attr("checked", false);
		}
	});
	
	//toggle sec radio buttons
	$('#secother').focus(function() {
		$('#sec28').attr("checked", false);
		$('#sec35').attr("checked", false);
	});
	
	//empty secother with either sec clicked
	$('#sec28').click(function() {
		$('#secother').val("");
		$('#secother').removeClass("i-error");
	});
	$('#sec35').click(function() {
		$('#secother').val("");
		$('#secother').removeClass("i-error");
	});
	
	
	//toggle "Has a suitable and effective hard water treatment been fitted?"
	$('#hardreq-yes').click(function() {
		$('.hardtreat-l').removeClass("greyed-l");
		$('#hardtreat-yes').attr("disabled", false);
		$('#hardtreat-no').attr("disabled", false);
	});
	
	$('#hardreq-no').click(function() {
		$('.hardtreat-l').addClass("greyed-l");
		$('#hardtreat-yes').attr("disabled", true);
		$('#hardtreat-no').attr("disabled", true);
		$('.hardtype-l').addClass("greyed-l");
		$('#hardtype').addClass("greyed-i");
		$('#hardtype').attr("disabled", true);
		$('#hardtreat-yes').attr("checked", false);
		$('#hardtreat-no').attr("checked", false);
	});
	
	//toggle "What type?"
	$('#hardtreat-yes').click(function() {
		$('.hardtype-l').removeClass("greyed-l");
		$('#hardtype').removeClass("greyed-i");
		$('#hardtype').attr("disabled", false);
	});
	
	$('#hardtreat-no').click(function() {
		$('.hardtype-l').addClass("greyed-l");
		$('#hardtype').addClass("greyed-i");
		$('#hardtype').attr("disabled", true);
		$('#hardtype').val("");
	});
	
	//toggle "Set to what pressure?"
	$('#pressvalv-yes').click(function() {
		$('.pressvalv-l').removeClass("greyed-l");
		$('#pressvalv-set').removeClass("greyed-i");
		$('#pressvalv-set').attr("disabled", false);
	});
	
	$('#pressvalv-no').click(function() {
		$('.pressvalv-l').addClass("greyed-l");
		$('#pressvalv-set').addClass("greyed-i");
		$('#pressvalv-set').attr("disabled", true);
		$('#pressvalv-set').val("");
	});
	
});