function selectModel(pn) {

	var func = pn.substr(0, 4);
    if (func == "2036") { document.codeform.act[0].checked = 1; } else { document.codeform.act[1].checked = 1; }

	var seal = pn.substr(5, 1);
    if (seal == "T") { document.codeform.seals[0].checked = 1; }
    if (seal == "A") { document.codeform.seals[1].checked = 1; }

	if (pn.substr(6, 1) == "0") {
		var size = pn.substr(7, 1);
    } else {
		var size = pn.substr(6, 1);
    }
        if (size == "3") { document.codeform.size[0].checked = 1; }
			else if (size == "4") { document.codeform.size[1].checked = 1;}
			else if (size == "6") { document.codeform.size[2].checked = 1;}
			else if (size == "8") { document.codeform.size[3].checked = 1;}

	var volt = pn.substr(-1);
    if (volt == "A") { document.codeform.sol_volt[1].checked = 1; } else { document.codeform.sol_volt[0].checked = 1; }
//	alert(volt);
    
    

changeCode();
}

function changeCode() {

// set vars that don't change and initialize others	
var sol = "";
var seal = "";
var lim = "";

var pic = "VA";

var solVolt = "";
var solType = "";
var solCon = "";

var bodyMatDescrip = "<b>Body Material:</b> Brass";
var sizeDescrip = "";
var sealDescrip = "";
var limDescrip  = "";
var solConDescrip = "";
var solVoltDescrip = "";
var solTypeDescrip = "";
var solRatingDescrip = "";
var accessDescrip = ""; // ----------- actuator accesories on assembly
var accessoryDescrip = "";	// ------- accesories that ship loose

var actpic = "";
var solpic = "";
var limpic = "";
var failPos = "";

var accPrice = 0;
var priceSum = "<b style='font-size:12px; font-weight:bold;'>Pricing:</b>";
var weightSum = "<b style='font-size:12px; font-weight:bold;'>Weight:</b>";

var limPrice = 0;
var limWeight = 0;

var solPrice = 0;
var solWeight = 0;

var price = 0;
var basePrice = 0;
var accessPrice = 0;
var accessoryPrice = 0;

var assemblyWeight = 0;
var baseWeight = 0;
var accessWeight = 0;
var accessoryWeight = 0;

var actcad = "";

var S4mod = "";
var S4bat = "";
var S4din = "";
var s4kitName = "";

var step1summary = "";
var step2summary = "";
var step3summary = "";
var alertNote = "";
    
    // ====================== reset classes of all selection divs and table cells to UN-selected state
    resetSizeDivs(); 
    resetSealDivs();
	resetSolDivs();
  
    

	// ================= reset summary boxes ==========================
       document.getElementById('priceSummary').innerHTML = "Error!";
       document.getElementById('weightSummary').innerHTML = "Error!";



    
// ================================================ SIZE ====================================================
    if (document.codeform.size[0].checked) { document.getElementById('size1').className="selectionChecked"; 
    	var siz = "03"; var sizeDescrip = "3/8 inch NPT";
    }
    
    if (document.codeform.size[1].checked) { document.getElementById('size2').className="selectionChecked"; 
    	var siz = "04"; var sizeDescrip = "1/2 inch NPT"; 
    }
    
    if (document.codeform.size[2].checked) { document.getElementById('size3').className="selectionChecked"; 
    	var siz = "06"; var sizeDescrip = "3/4 inch NPT";
    }
    
    if (document.codeform.size[3].checked) { document.getElementById('size4').className="selectionChecked"; 
    	var siz = "08"; var sizeDescrip = "1 inch NPT";
    }


// =================== exceptions for certain sizes =================

// ================================================ SEALS ====================================================
    if (document.codeform.seals[0].checked) { document.getElementById('seals1').className="selectionChecked"; var seal = "V"; var sealDescrip = "Viton&reg;"; }
    if (document.codeform.seals[1].checked) { document.getElementById('seals2').className="selectionChecked"; var seal = "A"; var sealDescrip = "BUNA"; }


// =================== Step 1 Summary =================
	var sizeDescrip = "<b>Size and Connection: </b>"+sizeDescrip;
    var sealDescrip = "<b>Seats and Seal Material: </b>"+ sealDescrip;
    var step1summary = bodyMatDescrip + "<br>"+sizeDescrip+"<br>"+sealDescrip;
    document.getElementById('step1summary').innerHTML = step1summary;

    
// ================================================= ACTUATORS =============================================
    
		resetActDivs();
	// ============================================= AIR ======================================================
    
    if (document.codeform.act[0].checked) { 
    		document.getElementById('act_1').className="selectionChecked"; 
            var act = "2036"; 
            var actDescrip = "Spring return, fail CLOSED"; 
            var act2="T";
            document.codeform.dimPage.value='2';
    }
    if (document.codeform.act[1].checked) { 
    		document.getElementById('act_2').className="selectionChecked"; 
            var act = "1335"; 
            	if (siz != '08') {var siz = siz.substring(1); }
            var actDescrip = "Spring return, fail OPEN"; 
            if (siz == '08') {
            	var act = "1342"; 
            }
            var act2="INAT";
            document.codeform.dimPage.value='3';
    }
    
    
        // =====================================================  Voltage ===============================================
            if (document.codeform.sol_volt[0].checked) { document.getElementById('sol_volt1').className="selectionChecked"; var solVolt = "B"; var solVoltDescrip = "24VDC"; 
            }
            
            if (document.codeform.sol_volt[1].checked) { document.getElementById('sol_volt2').className="selectionChecked"; var solVolt = "A"; var solVoltDescrip = "120VAC"; 
            }
            
        
         // ======== end of ACTUATORS        
    
// ======================================================== SET step 2 summary ==================================================


	var actDescrip = "<b>Function: </b>"+actDescrip+"<br><b>Voltage:</b> "+solVoltDescrip;    

    var step2summary = actDescrip;

    document.getElementById('step2summary').innerHTML = step2summary;


// ======================================================== SET step 3 summary ==================================================

// =========================================================== SET MODEL CODE =============================================
    
	var mc=act+"B"+seal+siz+act2+solVolt; 
	var valveBody= "JE"+act+"B"+seal+siz+act2+solVolt; 
        var pic = "VA"+solpic+limpic;

    var CADmc=siz+"VA";

	document.getElementById('PN').innerHTML =mc;
    document.codeform.id.value=mc;
	document.getElementById('MClinks').innerHTML =mc;
    document.getElementById('mainIMG').src = "/J/models/J.jpg";
    document.codeform.imgsrc.value="/J/models/J.jpg";
    
    
 //   document.codeform.CADmc.value=CADmc;
// =========================================================== SET PRICING =============================================

var qty = document.codeform.qty.value;

	// VALVE =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    	var basePrice = eval(valveBody+".price");
 	  	var baseWeight = eval(valveBody+".weight");
    
		var priceSum = priceSum + "<br>Valve Price: "+basePrice+" ("+valveBody+")";
		var weightSum = weightSum + "<br>Valve: "+baseWeight+" ("+valveBody+")";

	// SOLENOID =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    
    if (sol != "") {
    	if (solCon == "1" || solCon == "2") {
        	solPrice = eval(sol+".price");
            solWeight = eval(sol+".weight");

	    	var priceSum = priceSum + "<br>Solenoid Price: "+solPrice+" ("+sol+")";
    		var weightSum = weightSum + "<br>Solenoid: "+solWeight+" ("+sol+")";

        } else {
        	solBase = solType + solVolt;
            if (solCon == "3") { var solConID = "VEP_1005_70_HC"; }
            if (solCon == "4") { var solConID = "VEP_1005_70_HCC"; }
            if (solCon == "5") { var solConID = "CA5J560_000_US0G"; }
            if (solCon == "6") { var solConID = "CA5J5F0_000_US0G"; }
            solPrice = eval(solBase+".price") + eval(solConID+".price")+LABUNIT.price;
            solWeight = eval(solBase+".weight") + eval(solConID+".weight");

	    	var priceSum = priceSum + "<br>Solenoid Price: "+solPrice+" ("+solBase+", "+solConID+")";
    		var weightSum = weightSum + "<br>Solenoid: "+solWeight+" ("+solBase+", "+solConID+")";
        }
        
    }

	// LIMIT SWITCH  =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
		// (taken care of above when determining Limit Switch)

		
 
 	// LABOR =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    
   if (sol != "") {
		var mountLab = 0;        
   } else {
		var mountLab = 1;        
   }
      
   //alert(priceSum);
    
    var mountPrice= mountLab * LABUNIT.price;
    var fullPrice = Math.ceil(basePrice + solPrice + limPrice);
    var fullWeight = Math.ceil(baseWeight + solWeight + limWeight);
    
   document.getElementById('price').innerHTML = fullPrice;
   document.codeform.price.value=fullPrice;
   document.codeform.weight.value=fullWeight;
   
   document.getElementById('priceSummary').innerHTML = priceSum;
   document.getElementById('weightSummary').innerHTML = weightSum+"<br><b>TOTAL: </b>"+fullWeight+" lbs.";
   
   var totalPrice = (fullPrice + accessPrice) * qty;
   
   document.getElementById('totalPrice').innerHTML = totalPrice;


// =========================================================== SET DESCRIPTION =============================================

    var fullSummary = step1summary + "<br>" + step2summary + "<br>" + step3summary;

	if (alertNote != "") {
   // alert(alertNote+ 'oooooops');
    	var fullSummary = fullSummary + "<br>" + alertNote;
    }
    document.getElementById('fullSummary').innerHTML = fullSummary;
	document.codeform.info.value=fullSummary;

	if (accessoryPrice != 0) {
    	document.getElementById('accessoryPriceText').style.display="block";
    	document.getElementById('accessoryPrice').innerHTML=accessoryPrice;
        document.getElementById('accessorySummary').innerHTML=accessoryDescrip;        
      
    } else {
    	document.getElementById('accessoryPriceText').style.display="none";
    }
    
}

// ========================================================== END OF MAIN FUNCTION ============================================================


// ============================================================= OTHER FUNCTIONS =========================================================

function addToCart() {
	document.codeform.submit();
}


function showHideAccess(item) { 
	if (document.getElementById(item+"BOX").style.display == "none") {
    	document.getElementById(item+"BOX").style.display = "block";
        document.getElementById(item+"HEAD").className = "accessHeadOpen";
        document.getElementById(item).checked = 1;
    } else {
    	document.getElementById(item+"BOX").style.display = "none";
        document.getElementById(item+"HEAD").className = "accessHead";
        document.getElementById(item).checked = 0;
    }
}


function resetSizeDivs() {
	document.getElementById('size1').className="selection";
	document.getElementById('size2').className="selection";
	document.getElementById('size3').className="selection";
	document.getElementById('size4').className="selection";
}

function resetActDivs() {
	document.getElementById('act_1').className="selection";
	document.getElementById('act_2').className="selection";
}


function resetSealDivs() {
	document.getElementById('seals1').className="selection";
	document.getElementById('seals2').className="selection";
}

function resetSolDivs() {

	document.getElementById('sol_volt1').className="selection";
	document.getElementById('sol_volt2').className="selection";
}






function closeStep(step) {
	document.getElementById('step'+step+'close').style.display="none";
	document.getElementById('step'+step+'edit').style.display="block";

	document.getElementById('step'+step+'section').style.display="none";
	document.getElementById('step'+step+'summary').style.display="block";
}


function editStep(step) {
	document.getElementById('step'+step+'close').style.display="block";
	document.getElementById('step'+step+'edit').style.display="none";
    
	document.getElementById('step'+step+'section').style.display="block";
	document.getElementById('step'+step+'summary').style.display="none";    
}

function showInfo(what) {
	if (document.getElementById(what).style.display != "none") {
    	document.getElementById(what).style.display = "none";
            document.getElementById("specsBut").className = "infoTab";
            document.getElementById("descripBut").className = "infoTab";
    } else {
    	if (what == "description") {
 	   		document.getElementById("specs").style.display = "none";
 	   		document.getElementById("description").style.display = "block";
            document.getElementById("descripBut").className = "infoTabSelected";
            document.getElementById("specsBut").className = "infoTab";
        } else {
 	   		document.getElementById("specs").style.display = "block";
 	   		document.getElementById("description").style.display = "none";
            document.getElementById("specsBut").className = "infoTabSelected";
            document.getElementById("descripBut").className = "infoTab";
        }
    }
}