function selectModel(pn) {

	var size = pn.substr(5, 3);

//alert(size);

if (size == "025") {
	document.codeform.nptSize[0].checked = true;
}
if (size == "050") {
	document.codeform.nptSize[1].checked = true;
}
if (size == "075") {
	document.codeform.nptSize[2].checked = true;
}
if (size == "100") {
	document.codeform.nptSize[3].checked = true;
}

	var GHA = pn.substr(8);
//alert(PO);

if (GHA == "-GHA") {
	document.codeform.gha.checked = true;
}


}



function changeCode() {

// set vars that don't change and initialize others	

var bodyMatDescrip = "<b>Body Material:</b> Stainless Steel";
var sizeDescrip = "";
var flowRange = "";
var accessDescrip = "";
var pulseModel = "";

var siz = "";
var pulse = "";
var ghaPrice = 0;
var pic = "";

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 price = 0;

var accessPrice = 0;

var assemblyWeight = 0;
var accessWeight = 0;
var accessSummary = "";

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

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

// ================================================ SIZE & CONNECTION ====================================================

	    if (document.codeform.nptSize[0].checked) { 
        	document.getElementById('nptSize1').className="chartRowSelected"; 
            var siz = "025"; var sizeDescrip = "1/4 inch NPT (male)"; var flowRange = "5.22 to 105 gph";
            var CVmodel = "A112CVLFN";
        }
        
	    if (document.codeform.nptSize[1].checked) { 
        	document.getElementById('nptSize2').className="chartRowSelected"; 
            var siz = "050"; var sizeDescrip = "1/2 inch NPT (male)"; var flowRange = "19.2 to 395 gph";
            var CVmodel = "C112CVLFN";
            var ghaModel = "WMGHA050";
        }
            
	    if (document.codeform.nptSize[2].checked) { 
        	document.getElementById('nptSize3').className="chartRowSelected"; 
            var siz = "075"; var sizeDescrip = "3/4 inch NPT (male)"; var flowRange = "1 to 22 gpm";
            var CVmodel = "D112CVLFN";
            var ghaModel = "WMGHA075";
      }
        
	    if (document.codeform.nptSize[3].checked) { 
        	document.getElementById('nptSize4').className="chartRowSelected"; 
            var siz = "100"; var sizeDescrip = "1 inch NPT (male)"; var flowRange = "1.75 to 365 gpm";
            var CVmodel = "E112CVLFN";
        }
            

	var step1summary = "<b>Size &amp; Connection:</b> "+sizeDescrip+"<br><b>Housing Material:</b> Plastic Pa66 + GF/PPS<br><b>Flow Range:</b> "+flowRange+"<br><b>Accuracy:</b> +/- 1% Full Scale<br><b>Function:</b> Rate, total, and batch total<br><b>Units:</b> U.S. Gallons, Pints, Quarts, Liters";


    
    
    //============================ SET Available Accessories based on size selected ================================
        
    //==================== GHA Only 1/2 and 3/4 =========
	
    if (siz != "050" && siz != "075") {
    	document.codeform.gha.checked = false;
    	document.getElementById('ghaHEAD').style.display = "none";
    	document.getElementById('ghaHEAD').className = "accessHead";
    	document.getElementById('ghaBOX').style.display = "none";
    	document.getElementById('ghaNA').style.display = "";
    } else {
    	document.getElementById('ghaHEAD').style.display = "";
        if (document.codeform.gha.checked) {
	    	document.getElementById('ghaBOX').style.display = "";
        }
    	document.getElementById('ghaNA').style.display = "none";
    }
    
    //==================== Check Valve nothing to do - all models have check valves available
    
    if (siz == "025") {
    	 if (document.codeform.cv.checked) { document.codeform.cv.checked=0; }
    	document.getElementById('cvHEAD').style.display = "none";
    	document.getElementById('cvHEAD').className = "accessHead";
    	document.getElementById('cvBOX').style.display = "none";
    	document.getElementById('cvNA').style.display = "";
    } else {
    	document.getElementById('cvHEAD').style.display = "";
        if (document.codeform.cv.checked) {
	    	document.getElementById('cvBOX').style.display = "";
        }
    	document.getElementById('cvNA').style.display = "none";
    }
    
// =========================================================== ACCESSORIES =============================================
    
	document.getElementById('step1summary').innerHTML=	step1summary;

    // ========================= CHECK VALVES ====================

    if (document.codeform.cv.checked) {
    	document.codeform.CHECKprice.value=eval(CVmodel+".price");
    	document.codeform.CHECKweight.value=eval(CVmodel+".weight");
    	document.codeform.CHECKprodseries.value="WM_PC_"+siz;
    	document.codeform.CHECKid.value=CVmodel;
		var step2summary = step2summary + "<b>Check Valve:</b> Lead Free Brass check valve ($"+eval(CVmodel+".price")+")<br>";
    }

// ========================= Garden Hose Adapter ====================

    if (document.codeform.gha.checked) {
    	document.codeform.GHAprice.value=eval(ghaModel+".price");
    	document.codeform.GHAweight.value=eval(ghaModel+".weight");
    	document.codeform.GHAprodseries.value="WM_PC_"+siz;
        document.codeform.GHAid.value=ghaModel;
        
		var step2summary  = step2summary +"<b>Garden Hose Adapters:</b> (1) FNPT x MGHT, (1) FNPT x FGHT ($"+eval(ghaModel+".price")+")<br>";
        
    }
    

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


// =========================================================== SET MODEL CODE =============================================
    
	var mc="DM_P_"+siz; 
    var pic = "DM-P";
 
 	var fullMc = mc;
    
    var fullMc = fullMc.replace(/_/g, "-");

 
	document.getElementById('PN').innerHTML =fullMc;
    document.codeform.id.value=fullMc;

	document.getElementById('MClinks').innerHTML = fullMc; //mc+pulse;
    document.getElementById('mainIMG').src = "/DM-P/models/"+pic+".jpg";
    document.codeform.imgsrc.value="/DM-P/models/"+pic+".jpg";
    
// =========================================================== SET PRICING =============================================

var qty = document.codeform.qty.value;

	// METER =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    var basePrice = eval(mc+".price");
    var baseWeight = eval(mc+".weight");

	var priceSum = priceSum + "<br>Meter: "+basePrice+" ("+mc+")<br>";
	var weightSum = weightSum + "<br>Meter: "+baseWeight+" ("+mc+")<br>";

 // ACCESSORIES -=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

	//================= CHECK VALVE ===================
 	if(document.codeform.cv.checked) {
	    var cvPrice= eval(CVmodel+".price");
	    var cvWeight=eval(CVmodel+".weight");

		var priceSum = priceSum + "<hr>Check Valve: "+cvPrice+" ("+CVmodel+")<br>";
		var weightSum = weightSum + "<hr>Check Valve: "+cvWeight+" ("+CVmodel+")<br>";
                
        var accessPrice = accessPrice + cvPrice;
        var accessWeight = accessWeight + cvWeight;
        var accessSummary = accessSummary + "<b>Check Valve: </b>Lead free brass check valve($"+cvPrice+")<br>";
    }
 
	//================= GHA ===================
 	if(document.codeform.gha.checked) {
	    var ghaPrice= eval(ghaModel+".price");
	    var ghaWeight=eval(ghaModel+".weight");

		var priceSum = priceSum + "<hr>GHA: "+ghaPrice+" ("+ghaModel+")<br>";
		var weightSum = weightSum + "<hr>GHA: "+ghaWeight+" ("+ghaModel+")<br>";
                
        var accessPrice = accessPrice + ghaPrice;
        var accessWeight = accessWeight + ghaWeight;
        var accessSummary = accessSummary + "<b>Garden Hose Adapter Set: </b>(1) FNPT x MGHT, (1) FNPT x FGHT ($"+ghaPrice+")";
    }

 
 	// LABOR =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    
	// -- NO LABOR -- //
       
   //alert(priceSum);
    
    var fullPrice = Math.ceil(basePrice) //+ Math.ceil(accessPrice);
    var fullWeight = Math.ceil(baseWeight) //+ Math.ceil(accessWeight);
    
   document.getElementById('price').innerHTML = fullPrice;
   document.codeform.price.value=fullPrice;
   
   document.getElementById('priceSummary').innerHTML = priceSum+"<br><b>TOTAL: </b> $"+fullPrice;
   document.getElementById('weightSummary').innerHTML = weightSum+"<br><b>TOTAL: </b>"+fullWeight+" lbs.";
   document.codeform.weight.value=fullWeight;
   
   var totalPrice = (fullPrice + accessPrice) * qty;
   
   document.getElementById('totalPrice').innerHTML = totalPrice;


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

    var fullSummary = step1summary; // + "<br>" + step2summary + "<br>" + step3summary;
    document.getElementById('fullSummary').innerHTML = fullSummary;

	document.codeform.info.value=fullSummary;

	if (accessPrice != 0) {
    	document.getElementById('accessPriceText').style.display="block";
    	document.getElementById('accessPrice').innerHTML=accessPrice;
        document.getElementById('accessSummary').innerHTML=accessSummary;        
    } else {
    	document.getElementById('accessPriceText').style.display="none";
    }
}

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


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

function addToCart() {
	document.codeform.submit();
	//alert ('not quite yet... need to add in pricing');
}


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('nptSize1').className="chartRow";
	document.getElementById('nptSize2').className="chartRow";
	document.getElementById('nptSize3').className="chartRow";
	document.getElementById('nptSize4').className="chartRow";

}

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";
        }
    }
}