function selectModel(pn) {

	var size = pn.substr(0, 1);
	var conn = pn.substr(3, 1);
	var material = pn.substr(4, 2);
    
    
    if (material == "LF") {
    	var actuator = pn.substr(6);
 //  alert(actuator);
 		document.codeform.mat[1].checked=1;
    } else {
    	var actuator = pn.substr(4);
 //  alert(actuator);
 		document.codeform.mat[0].checked=1;
    }
    
   	if (actuator == "CEB" || actuator == "CEF" || actuator == "CEE") {
    	if (actuator == "CEE") {
        	document.codeform.onOffVoltage[0].checked =1;
        }    
    	if (actuator == "CEF") {
        	document.codeform.onOffVoltage[1].checked =1;
        }    
    	if (actuator == "CEB") {
        	document.codeform.onOffVoltage[2].checked =1;
        }   
        
        if (size == "C") { document.codeform.size[0].checked =1;}
        if (size == "D") { document.codeform.size[1].checked =1;}
        if (size == "E") { document.codeform.size[2].checked =1;}
        if (size == "F") { document.codeform.size[3].checked =1;}
        if (size == "G") { document.codeform.size[4].checked =1;}
        if (size == "H") { document.codeform.size[5].checked =1;}

        	document.codeform.act[0].checked =1;
                 
    } 

changeCode();
}

function changeCode() {



// set vars that don't change and initialize others	
var con = "N"; // =============== changes to NRB if bracket is chosen
var cv = "";
var Cv = "";
var mat = "";

var CvMC = "";

var sizeDescrip = "";
var portDescrip = "";

var actpic = "";
var matpic = "";

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 assemblyWeight = 0;

var actcad = "";

var step1summary = "";
var step2summary = "";
var step3summary = "";

var alertNote = "";
    
    // ====================== reset classes of all selection divs and table cells to UN-selected state
    resetSizeDivs(); 
   // document.getElementById('wiringIcon').style.display="none";
    
    
	// ================= reset summary boxes ==========================
       document.getElementById('priceSummary').innerHTML = "Error!";
       document.getElementById('weightSummary').innerHTML = "Error!";


// ================================================= ACTUATORS =============================================

//alert('here');

			// reset valve function & voltages =========================================

            document.getElementById('volt1').className='selection';
            document.getElementById('volt2').className='selection';
            document.getElementById('volt3').className='selection';


        	document.getElementById('onOffVoltages').style.display=""; 
            document.getElementById('onOffSize').style.display="";

			var portDescrip = "Full Port";
    //----------- SET Dimension & Wiring Diagram PAGE =-=-------------------------
    
			document.codeform.wireDiagPage.value = "/literature/SM_datasheet.pdf#page=2"; 
			document.codeform.dimPage.value = "2"; 

                var actpic = "CE";
            
            if (document.codeform.onOffVoltage[0].checked) {
            	var act = "CEE";
	            document.getElementById('volt1').className='selectionChecked';
     	        var actDescrip = "Sure-mount compact On/Off 24VAC electric actuator (60 sec.) ";
        }
            if (document.codeform.onOffVoltage[1].checked) {
            	var act = "CEF";
	            document.getElementById('volt2').className='selectionChecked';
     	        var actDescrip = "Sure-mount compact On/Off 12VDC electric actuator (4 - 10 sec.)";
        }
            if (document.codeform.onOffVoltage[2].checked) {
            	var act = "CEB";
	            document.getElementById('volt3').className='selectionChecked';
 	           	var actDescrip = "Sure-mount compact On/Off 24VDC electric actuator (4 - 10 sec.)";
            }


        // ================================================ SIZE ====================================================
            if (document.codeform.size[0].checked) { document.getElementById('size1').className="selectionChecked"; var siz = "C"; var sizeDescrip = "1/2 inch NPT"; }
            if (document.codeform.size[1].checked) { document.getElementById('size2').className="selectionChecked"; var siz = "D"; var sizeDescrip = "3/4 inch NPT"; }
            if (document.codeform.size[2].checked) { document.getElementById('size3').className="selectionChecked"; var siz = "E"; var sizeDescrip = "1 inch NPT"; }
            if (document.codeform.size[3].checked) { document.getElementById('size4').className="selectionChecked"; var siz = "F"; var sizeDescrip = "1 1/4 inch NPT"; }
            if (document.codeform.size[4].checked) { document.getElementById('size5').className="selectionChecked"; var siz = "G"; var sizeDescrip = "1 1/2 inch NPT"; var portDescrip = "Standard Port";}
            if (document.codeform.size[5].checked) { document.getElementById('size6').className="selectionChecked"; var siz = "H"; var sizeDescrip = "2 inch NPT"; var portDescrip = "Standard Port";}

			//========================= body material ========================
            
            document.codeform.mat[1].disabled = 0;
            document.getElementById('mat1').className = "selection";
            document.getElementById('mat2').className = "selection";
            
			if (document.codeform.mat[0].checked) {
           		document.getElementById('mat1').className = "selectionChecked";
                var mat = "";
                var bodyMatDescrip = "<b>Body Material:</b> Nickel Plated Brass";

            }

			if (document.codeform.mat[1].checked) {
           		document.getElementById('mat2').className = "selectionChecked";
                var mat = "LF";
				var bodyMatDescrip = "<b>Body Material:</b> Lead Free Brass";
        }
            
        
        

      
// =============== SIZE COMMON ========================================
	var sizeDescrip = "<b>Size and Connection: </b>"+sizeDescrip;
    var sealDescrip = "<b>Seats and Seal Material: </b> PTFE";
    var portDescrip = "<b>Port Type: </b>" + portDescrip;
    var step2summary = bodyMatDescrip + "<br>" + sizeDescrip + "<br>" + portDescrip + "<br>" + sealDescrip;

// ======================================================== SET step 1 summary ==================================================

	var actDescrip = "<b>Actuator: </b>"+actDescrip+" ("+act+")";    

    var step1summary = actDescrip;


    document.getElementById('step1summary').innerHTML = step1summary;


   // alert(act);

// ======================================================== SET step 2 summary ==================================================

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



// =========================================================== SET MODEL CODE =============================================
    
var cv = Cv.replace(/_/g, "-");
var cv = cv.replace(/\$/g, ".");
    
	var mc=siz+"SMN"+mat+act+cv; 

    var pic = actpic+mat;

	document.getElementById('PN').innerHTML =mc;
    document.codeform.id.value=mc;
	document.getElementById('MClinks').innerHTML =mc;
    document.getElementById('mainIMG').src = "/SM/models/"+pic+".jpg";
    document.codeform.imgsrc.value="/SM/models/"+pic+".jpg";
    
    //----------- SET DIM PAGE =-=-------------------------
   // alert(act);
    if (con == "NRX") {
    	if (act == "CE") { document.codeform.dimPage.value = 3; }
    	if (act == "CEKEP" || act == "F6D") { document.codeform.dimPage.value = 4;}
    	if (act.substring(0,2) == "B7") { document.codeform.dimPage.value = "X"; } // ------------- X gets the oops - please call page ------------
    
    }

    

    
// =========================================================== SET PRICING =============================================

var qty = document.codeform.qty.value;

	// VALVE =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    var basePrice = eval(siz+"SMN"+mat+CvMC+".price");
    var baseWeight = eval(siz+"SMN"+mat+CvMC+".weight");
 //   alert(basePrice);
		var priceSum = priceSum + "<br>Valve Price: "+basePrice+" ("+siz+"SMN"+mat+Cv+")";
		var weightSum = weightSum + "<br>Valve: "+baseWeight+" ("+siz+"SMN"+mat+Cv+")";

 
	// ACTUATOR =--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    var actPrice = eval(act+".price");
    var actWeight = eval(act+".weight");
        
    var priceSum = priceSum + "<br>Actuator Price: "+actPrice+" ("+act+")";
    var weightSum = weightSum + "<br>Actuator: "+actWeight+" ("+act+")";	

var bracketPrice = 0;
var bracketWeight = 0;

    var priceSum = priceSum + "<br>Bracket: "+SMBKT.price+" (SMBKT)";
    var weightSum = weightSum + "<br>Bracket: "+SMBKT.weight+" (SMBKT)";
    var bracketPrice = SMBKT.price;	
    var bracketWeight = SMBKT.weight;	

 	// LABOR =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    var laborPrice = LABUNIT.price;
    
    	var priceSum = priceSum + "<br>Labor: "+ (0.5 * LABUNIT.price) + " (1/2 LABUNIT)";
	    var laborPrice = 0.5 * LABUNIT.price;

    
    var fullPrice = Math.ceil(basePrice + actPrice + bracketPrice + laborPrice);
    var fullWeight = Math.ceil(baseWeight + actWeight + bracketWeight);
    
   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 * qty;
   
   document.getElementById('totalPrice').innerHTML = totalPrice;


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

    var fullSummary = step1summary + "<br>" + step2summary  + "<br><b>Protection Rating: </b>IP54 (Indoor Use ONLY! - protection from dust and splashing water)";

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

	document.codeform.info.value=fullSummary;

    
}

// ========================================================== END OF MAIN changecode 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('size1').className="selection";
	document.getElementById('size2').className="selection";
	document.getElementById('size3').className="selection";
	document.getElementById('size4').className="selection";
	document.getElementById('size5').className="selection";
	document.getElementById('size6').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";
        }
    }



// ============================= SM Cv functions:

	
}