function selectModel(pn) {

	var size = pn.substr(6, 3);

//alert(size);

if (size == "050") {
	document.codeform.nptSize[0].checked = true;
}
if (size == "075") {
	document.codeform.nptSize[1].checked = true;
}
if (size == "100") {
	document.codeform.nptSize[2].checked = true;
}
if (size == "150") {
	document.codeform.nptSize[3].checked = true;
}
if (size == "200") {
	document.codeform.nptSize[4].checked = true;
}

	var PO = pn.substr(9);
//alert(PO);

if (PO == "-R/1P") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[0].checked = true;
    showHideAccess('pulse');
}
if (PO == "-R/2P") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[1].checked = true;
    showHideAccess('pulse');
}
if (PO == "-R/10P") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[2].checked = true;
    showHideAccess('pulse');
}
if (PO == "-R/20P") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[3].checked = true;
    showHideAccess('pulse');
}
if (PO == "-R/10G") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[4].checked = true;
	showHideAccess('pulse');}
if (PO == "-R/5G") {
	document.codeform.pulse.checked = true;
	document.codeform.pulseOpt[5].checked = true;
    showHideAccess('pulse');
}


}



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(); 
    resetPulseDivs(); 

	// ================= 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 = "050"; var sizeDescrip = "1/2 inch NPT"; var flowRange = "1 - 20 gpm";
            var COUPLINGmodel = "WM_NLC_F_050";
            var CVmodel = "C112CVLFN";
            var ghaModel = "WMGHA050";
        }
        
	    if (document.codeform.nptSize[1].checked) { 
        	document.getElementById('nptSize2').className="chartRowSelected"; 
            var siz = "075"; var sizeDescrip = "3/4 inch NPT"; var flowRange = "1 - 20 gpm";
            var COUPLINGmodel = "WM_NLC_F_075";
            var CVmodel = "D112CVLFN";
            var ghaModel = "WMGHA075";
        }
            
	    if (document.codeform.nptSize[2].checked) { 
        	document.getElementById('nptSize3').className="chartRowSelected"; 
            var siz = "100"; var sizeDescrip = "1 inch NPT"; var flowRange = "3 - 50 gpm";
            var COUPLINGmodel = "WM_NLC_F_100";
            var CVmodel = "E112CVLFN";
      }
        
	    if (document.codeform.nptSize[3].checked) { 
        	document.getElementById('nptSize4').className="chartRowSelected"; 
            var siz = "150"; var sizeDescrip = "1 1/2 inch NPT"; var flowRange = "5 - 75 gpm";
            var COUPLINGmodel = "WM_NLC_F_150";
            var CVmodel = "G112CVLFN";
        }
            

	var step1summary = "<b>Size &amp; Connection:</b> "+sizeDescrip+"<br><b>Housing Material:</b> Plastic (NSF/ANSI 61)<br><b>Flow Range:</b> "+flowRange+"<br><b>Accuracy:</b> +/- 1.5%<br><b>Function:</b> Totalizer only<br><b>Units:</b> U.S. Gallons";


    
    
    //============================ SET Available Accessories based on size selected ================================
    
    //==================== Pulse Output
	if (document.codeform.pulse.checked) { 				// ---- only need to do this if the box is checked
    
    	if (siz == "050") {
        	if (document.codeform.pulseOpt[2].checked || document.codeform.pulseOpt[4].checked) { document.codeform.pulseOpt[0].checked = true; }
        	if (document.codeform.pulseOpt[3].checked || document.codeform.pulseOpt[5].checked) { document.codeform.pulseOpt[1].checked = true; }
            
            document.codeform.pulseOpt[2].disabled=true;
            document.codeform.pulseOpt[3].disabled=true;
            document.codeform.pulseOpt[4].disabled=true;
            document.codeform.pulseOpt[5].disabled=true;
            
            document.getElementById('pulse3').className = "selectionDisabled";
            document.getElementById('pulse4').className = "selectionDisabled";
            document.getElementById('pulse5').className = "selectionDisabled";
            document.getElementById('pulse6').className = "selectionDisabled";
        }


    	if (siz == "075" || siz == "100") {
        	if (document.codeform.pulseOpt[4].checked) { document.codeform.pulseOpt[0].checked = true; }
        	if (document.codeform.pulseOpt[5].checked) { document.codeform.pulseOpt[1].checked = true; }
            
            document.codeform.pulseOpt[4].disabled=true;
            document.codeform.pulseOpt[5].disabled=true;
            
            document.getElementById('pulse5').className = "selectionDisabled";
            document.getElementById('pulse6').className = "selectionDisabled";
        }

    	if (siz == "150" || siz == "200") {
        	if (document.codeform.pulseOpt[0].checked) { document.codeform.pulseOpt[4].checked = true; }
        	if (document.codeform.pulseOpt[1].checked) { document.codeform.pulseOpt[5].checked = true; }
        	if (document.codeform.pulseOpt[2].checked) { document.codeform.pulseOpt[4].checked = true; }
        	if (document.codeform.pulseOpt[3].checked) { document.codeform.pulseOpt[5].checked = true; }
            
            document.codeform.pulseOpt[0].disabled=true;
            document.codeform.pulseOpt[1].disabled=true;
            document.codeform.pulseOpt[2].disabled=true;
            document.codeform.pulseOpt[3].disabled=true;
            
            document.getElementById('pulse1').className = "selectionDisabled";
            document.getElementById('pulse2').className = "selectionDisabled";
            document.getElementById('pulse3').className = "selectionDisabled";
            document.getElementById('pulse4').className = "selectionDisabled";
        }

    }
    
    
    //==================== 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
    
    
// =========================================================== ACCESSORIES =============================================
// ========================= PULSE OUTPUT ====================
	if (document.codeform.pulse.checked) {
	    if (document.codeform.pulseOpt[0].checked) { 
        	document.getElementById('pulse1').className="selectionChecked"; 
            var pulse = "_R/1P"; 
            var pulseModel = "WM_C_SRS"; 
            var pulseDescrip = "1 pulse per Gallon";
        }
        
	    if (document.codeform.pulseOpt[1].checked) { 
        	document.getElementById('pulse2').className="selectionChecked"; 
            var pulse = "_R/2P"; 
            var pulseModel = "WM_C_DRS"; 
            var pulseDescrip = "2 pulses per Gallon";
        }
        
	    if (document.codeform.pulseOpt[2].checked) { 
        	document.getElementById('pulse3').className="selectionChecked"; 
            var pulse = "_R/10P"; 
            var pulseModel = "WM_C_SRS"; 
            var pulseDescrip = "10 pulses per Gallon";
        }
        
	    if (document.codeform.pulseOpt[3].checked) { 
        	document.getElementById('pulse4').className="selectionChecked"; 
            var pulse = "_R/20P"; 
            var pulseModel = "WM_C_DRS"; 
            var pulseDescrip = "20 pulses per Gallon";
        }
        
	    if (document.codeform.pulseOpt[4].checked) { 
        	document.getElementById('pulse5').className="selectionChecked"; 
            var pulse = "_R/10G"; 
            var pulseModel = "WM_C_SRS"; 
            var pulseDescrip = "1 pulses per 10 Gallons";
        }
        
	    if (document.codeform.pulseOpt[5].checked) { 
        	document.getElementById('pulse6').className="selectionChecked"; 
            var pulse = "-R/5G"; 
            var pulseModel = "WM_C_DRS"; 
            var pulseDescrip = "1 pulses per 5 Gallons";
        }

		var step1summary = step1summary + "<br><b>Pulse Output:</b> Dry Contact Reed Switch, "+pulseDescrip+" ($"+eval(pulseModel+".price")+")<br>";
    }
    
	document.getElementById('step1summary').innerHTML=	step1summary;

    
 // ========================= DIGITAL PULSE COUNTER ====================

   document.getElementById('counterTYPE_1').className = "selection";
   document.getElementById('counterTYPE_2').className = "selection";
   document.getElementById('counterTYPE_3').className = "selection";

   
    if (document.codeform.counter.checked && document.codeform.pulse.checked) {
    	if (document.codeform.counterType[0].checked) {
	   		document.getElementById('counterTYPE_1').className = "selectionChecked";
    		document.codeform.COUNTERprice.value=KAL_D06.price;
    		document.codeform.COUNTERweight.value=KAL_D06.weight;
    		document.codeform.COUNTERprodseries.value="WM-PC-"+siz;
    		document.codeform.COUNTERid.value="KAL-D06";
    		document.codeform.COUNTERinfo.value="digital pulse counter";
			var step2summary = "<b>Digital Pulse Counter:</b> KAL-D06 digital pulse counter ($"+KAL_D06.price+")<br>";
  		}
    	if (document.codeform.counterType[1].checked) {
	   		document.getElementById('counterTYPE_2').className = "selectionChecked";
    		document.codeform.COUNTERprice.value=KAL_D06_DIN32_ENC.price;
    		document.codeform.COUNTERweight.value=KAL_D06_DIN32_ENC.weight;
    		document.codeform.COUNTERprodseries.value="WM-PC-"+siz;
    		document.codeform.COUNTERid.value="KAL-D06-DIN32-ENC";
    		document.codeform.COUNTERinfo.value="digital pulse counter in NEMA 4 weatherproof enclosure";
			var step2summary = "<b>Digital Pulse Counter:</b> KAL-D06 digital pulse counter in NEMA 4 weatherproof enclosure ($"+KAL_D06_DIN32_ENC.price+")<br>";
  		}
    	if (document.codeform.counterType[2].checked) {
	   		document.getElementById('counterTYPE_3').className = "selectionChecked";
    		document.codeform.COUNTERprice.value=LOCK_KAL_D06.price;
    		document.codeform.COUNTERweight.value=LOCK_KAL_D06.weight;
    		document.codeform.COUNTERprodseries.value="WM-PC-"+siz;
    		document.codeform.COUNTERid.value="LOCK_KAL_D06";
    		document.codeform.COUNTERinfo.value="NEMA 4 weatherproof digital pulse counter";
			var step2summary = "<b>Digital Pulse Counter:</b> LOCK-KAL-D06 weatherproof digital pulse counter ($"+LOCK_KAL_D06.price+")<br>";
  		}
  	}


    // ========================= BRASS COUPLINGS ====================

    if (document.codeform.coupling.checked) {
    	document.codeform.COUPLINGprice.value=eval(COUPLINGmodel+".price")*2;
    	document.codeform.COUPLINGweight.value=eval(COUPLINGmodel+".weight")*2;
    	document.codeform.COUPLINGprodseries.value="WM-PC-"+siz;
    	document.codeform.COUPLINGid.value="(Set of 2) "+COUPLINGmodel;
		var step2summary = "<b>Lead Free Brass Couplings:</b> Set of 2 Lead Free Brass Couplings ($"+eval(COUPLINGmodel+".price")*2+")<br>";
    }

// ========================= 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="WM_PC_"+siz; 
    var pic = "WM-PC";
 
 	var fullMc = mc+pulse;
    
    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 = "/WM-PC/models/"+pic+".jpg";
    document.codeform.imgsrc.value="/WM-PC/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 -=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

 	//================= PULSE OUTPUT ==============
 	if (pulseModel !="") {
    var pulsePrice= eval(pulseModel+".price");
    var pulseWeight=eval(pulseModel+".weight");
		var priceSum = priceSum + "<br>Pulse Output Switch: "+pulsePrice+" ("+pulseModel+")";
		var weightSum = weightSum + "<br>Pulse Output Switch: "+pulseWeight+" ("+pulseModel+")";
        
        var basePrice = basePrice + pulsePrice;
    }

 	 	//================= PULSE COUNTER ==============
 	if(document.codeform.counter.checked && document.codeform.pulse.checked) {
    	if (document.codeform.counterType[0].checked) {
		    var counterPrice = KAL_D06.price;
		    var counterWeight = KAL_D06.weight;
	
			var priceSum = priceSum + "<hr>Pulse Counter: "+counterPrice+" (KAL-D06)<br>";
			var weightSum = weightSum + "<hr>Pulse Counter: "+counterWeight+" (KAL-D06)<br>";
	                
	        var accessPrice = counterPrice;
	        var accessWeight = counterWeight;
	        var accessSummary = "<b>Digital Pulse Counter: </b>KAL-D06 digital pulse counter ($"+counterPrice+")<br>";
	    }
    	if (document.codeform.counterType[1].checked) {
	    	var counterPrice = KAL_D06_DIN32_ENC.price;
	    	var counterWeight = KAL_D06_DIN32_ENC.weight;

			var priceSum = priceSum + "<hr>Pulse Counter: "+counterPrice+" (KAL-D06-DIN32-ENC)<br>";
			var weightSum = weightSum + "<hr>Pulse Counter: "+counterWeight+" (KAL-D06-DIN32-ENC)<br>";
                
        	var accessPrice = counterPrice;
        	var accessWeight = counterWeight;
        	var accessSummary = "<b>Digital Pulse Counter: </b>KAL-D06-DIN32-ENC digital pulse counter in NEMA 4 weatherproof enclosure ($"+counterPrice+")<br>";
       }
    	if (document.codeform.counterType[2].checked) {
	    	var counterPrice = LOCK_KAL_D06.price;
	    	var counterWeight = LOCK_KAL_D06.weight;

			var priceSum = priceSum + "<hr>Pulse Counter: "+counterPrice+" (LOCK-KAL-D06)<br>";
			var weightSum = weightSum + "<hr>Pulse Counter: "+counterWeight+" (LOCK-KAL-D06)<br>";
                
        	var accessPrice = counterPrice;
        	var accessWeight = counterWeight;
        	var accessSummary = "<b>Digital Pulse Counter: </b>NEMA 4 weatherproof LOCK-KAL-D06 digital pulse counter ($"+counterPrice+")<br>";
       }
    }

 
	//================= COUPLING UPGRADE ===================
 	if(document.codeform.coupling.checked) {
	    var couplingPrice= eval(COUPLINGmodel+".price")*2;
	    var couplingWeight=eval(COUPLINGmodel+".weight")*2;

		var priceSum = priceSum + "<hr>Lead Free Brass Coupling: "+couplingPrice+" ("+COUPLINGmodel+")<br>";
		var weightSum = weightSum + "<hr>Lead Free Brass Coupling: "+couplingWeight+" ("+COUPLINGmodel+")<br>";
                
        var accessPrice = couplingPrice;
        var accessWeight = couplingWeight;
        var accessSummary = "<b>Lead Free Brass Coupling: </b>Set of 2 Lead free brass couplings($"+couplingPrice+")<br>";
    }

	//================= 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 resetPulseDivs() {
	document.getElementById('pulse1').className="selection";
	document.getElementById('pulse2').className="selection";
	document.getElementById('pulse3').className="selection";
	document.getElementById('pulse4').className="selection";
	document.getElementById('pulse5').className="selection";
	document.getElementById('pulse6').className="selection";

	document.codeform.pulseOpt[0].disabled=false;
	document.codeform.pulseOpt[1].disabled=false;
	document.codeform.pulseOpt[2].disabled=false;
	document.codeform.pulseOpt[3].disabled=false;
	document.codeform.pulseOpt[4].disabled=false;
	document.codeform.pulseOpt[5].disabled=false;
}

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";
        }
    }
}