function selectModel(pn) {

	var switches = pn.substr(2, 2);
	var lamps = pn.substr(5, 2);

//alert(switches);
//alert(lamps);

if (switches == "S1") {
	document.codeform.switches[0].checked = 1;
}
if (switches == "S3") {
	document.codeform.switches[1].checked = 1;
}

if (lamps == "OG") {
	document.codeform.lamps[0].checked = 1;
}
if (lamps == "OR") {
	document.codeform.lamps[1].checked = 1;
}

	changeCode();
} 

function changeCode() {

// set vars that don't change and initialize others	
var switches = "";
var lamp = "";

var switchDescrip = "";
var lampDescrip = "";


    // ====================== reset classes of all selection divs and table cells to UN-selected state
    	resetDivs();     

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


// ================================================ SWITCHES ====================================================
    if (document.codeform.switches[0].checked) { document.getElementById('switch1').className="selectionChecked"; var switches = "S1"; var switchDescrip = "2-position; OPEN / CLOSE"; }
    if (document.codeform.switches[1].checked) { document.getElementById('switch2').className="selectionChecked"; var switches = "S3"; var switchDescrip = "3-position; OPEN / STOP / CLOSE";}
    
// ================================================ LAMPS ====================================================
    if (document.codeform.lamps[0].checked) { document.getElementById('lamps1').className="selectionChecked"; var lamp = "OG"; var lampDescrip = "Green = Open (left); RED = Closed (right)"; }
    if (document.codeform.lamps[1].checked) { document.getElementById('lamps2').className="selectionChecked"; var lamp = "OR"; var lampDescrip = "Red = Open (left); Green = Closed (right)"; }


// ================================================ DESCRIPTION ====================================================

	var enclosureDescrip = "<b>Enclosure: </b>Weatherproof 3-hole (NEMA 1, 4X, 12, 13)";    
	var switchDescrip = "<b>Switch: </b>"+switchDescrip;    
    var lampDescrip = "<b>Lamps: </b> "+lampDescrip;

    var step1summary = enclosureDescrip + "<br>" + switchDescrip + "<br>" + lampDescrip;
    
    document.getElementById('step1summary').innerHTML = step1summary;



// =========================================================== SET MODEL CODE =============================================
    
	var mc="CB"+switches+"-"+lamp; 
	var mcPrice="CB"+switches+"-OG"; 
    
    var pic = "CB-"+switches+"-"+lamp;

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

var qty = document.codeform.qty.value;
    
    var PriceMC = mcPrice.replace(/-/g, "_");

var basePrice = (eval(PriceMC+".price"));
    	var baseWeight = eval(PriceMC+".weight");
    
var priceSum =  "<b>Price:</b> "+basePrice+" ("+mc+")";
			var weightSum = "<b>Weight:</b> "+baseWeight+" ("+mc+")";
		
 
 	// LABOR =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    
    var fullPrice = Math.ceil(basePrice);
    var fullWeight = Math.ceil(baseWeight);
    
   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;

    document.getElementById('fullSummary').innerHTML = fullSummary;
	document.codeform.info.value=fullSummary;

}
// ========================================================== 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 resetDivs() {
	document.getElementById('switch1').className="selection";
	document.getElementById('switch2').className="selection";
	document.getElementById('lamps1').className="selection";
	document.getElementById('lamps2').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";
        }
    }
}