function changeCode(){ 
// clear variables
        var baseweight = 0;
        var mc = "";
        var err = "";
        var ser = "";
        var psi = "";
        var price = "";
        var baseweight = 0;
        var baseprice = 0;
        var basedescrip = "";
        var actweight = 0;
        var actprice = 0;
        var actdescrip = "";
        var actvoltage = "";
        var failpos = "";
        var mountprice = 0;
        var mountweight = 0;
        var solprice = 0;
        var limprice = 0;
        var solweight = 0;
        var limweight = 0;
        var siz = "";
        var nqs = "no";
        var infotext = "";
        var bodymat = "Stainless Steel";
        var sizedescrip = "";
        var condescrip = "NPT (female)";
        var infoflo = "";
        var seatmat = "RPTFE";
        var sealmat = "RPTFE";
        var soldescrip = "";
        var solvoltage = "";
        var limdescrip = "";
		var sol = "";
		var solpic = "";
		var limpic = "";
		var solt = "E";
		var solc = "";
		var solv = "";
		var failopentext = "Open";
		var failclosedtext = "Closed";

        document.codeform.price.value = "";
		
// get all user selections

// Size ---------------------------
        if (document.codeform.size[0].checked) {var siz = "B"; var sizedescrip =  "3/8 inch"};
        if (document.codeform.size[1].checked) {var siz = "C"; var sizedescrip =  "1/2 inch"};
        if (document.codeform.size[2].checked) {var siz = "D"; var sizedescrip =  "3/4 inch"};
        if (document.codeform.size[3].checked) {var siz = "E"; var sizedescrip =  "1 inch"};

// ways ---------------------------
        if (document.codeform.ways[0].checked) {
			var way = "2"; var waydescrip =  "2-way"; var failopentext = "Open"; var failclosedtext = "Closed"};
        if (document.codeform.ways[1].checked) {
			var way = "3"; var waydescrip =  "3-way"; var failopentext = "A => B"; var failclosedtext = "A => C"};
		
			document.getElementById('failopen').innerHTML = failopentext;
			document.getElementById('failclosed').innerHTML = failclosedtext;
		
// Material ---------------------------
        if (document.codeform.bodmat[0].checked) {var bodmat = "B"; var bodmatdescrip =  "Brass"};
        if (document.codeform.bodmat[1].checked) {var bodmat = "S"; var bodmatdescrip =  "Stainless Steel"};
		

// Actuators ---------------------------
          if (document.codeform.actuator[0].checked) {var act = "P"; var avolt = "";
				if (document.getElementById("solenoid").style.display != "block"){
				document.getElementById("solenoid").style.display="block";
				if (getCookie("soltabs") == "soltab2"){ document.codeform.solenoid[1].checked = 1}
				if (getCookie("soltabs") == "soltab3"){ document.codeform.solenoid[5].checked = 1}
				}
		  }
		  
          if (document.codeform.actuator[1].checked) {var act = "E"; var avolt = "B";
			document.getElementById("solenoid").style.display="none";
			document.codeform.solenoid[0].checked = 1;
			var sol = ""; var solpic =  "";
		  }
		  
          if (document.codeform.actuator[2].checked) {var act = "E"; var avolt = "A";
				document.getElementById("solenoid").style.display="none";
			document.codeform.solenoid[0].checked = 1;
			var sol = ""; var solpic =  "";
		  }



// Fail Position ---------------------------
        if (document.codeform.fail[0].checked) {var failpos = "O"};
        if (document.codeform.fail[1].checked) {var failpos = "C"};
		
		
// Solenoid ---------------------------
        if (document.codeform.solenoid[0].checked) {var solc = ""};
        if (document.codeform.solenoid[1].checked) {var solc = "3"};
        if (document.codeform.solenoid[2].checked) {var solc = "4"};
        if (document.codeform.solenoid[3].checked) {var solc = "5"};
        if (document.codeform.solenoid[4].checked) {var solc = "6"};
        if (document.codeform.solenoid[5].checked) {var solc = "2"};
		
        if (document.codeform.solenoidv[0].checked) {var solv = "A"; var solvoltage="120 VAC"};
        if (document.codeform.solenoidv[1].checked) {var solv = "B"; var solvoltage="24 VDC"};
        if (document.codeform.solenoidv[2].checked) {var solv = "F"; var solvoltage="12 VDC"};
		
		if (solc!=""){var sol=solt+solc+solv; var solpic=solt+"3";
			if (solc=="2"){ var solpic=solt+"2";}
			}


// Check for exceptions ----------------------------------------------------------

	// no 3-way SS only Brass ----------------------------------------------------------

		if ((way == "3") && (bodmat == "S")) {
			alert ('3-way models are only available in BRASS.\n\nThe Body Material will automatically be changed.');
			document.codeform.bodmat[0].checked = 1;
			var bodmat = "B"; var bodmatdescrip =  "Brass"
		}

	// no Solenoid on Electric valves ----------------------------------------------------------

		if ((act != "P") && (sol != "")) {
			document.getElementById("solenoid").style.display="none";
			document.codeform.solenoid[0].checked = 1;
			var sol = ""; var solpic =  "";
		}
		


// Set model code & pic variables ---------------------------

        var pic = ""+bodmat+way+act+solpic;
        var pmc = ""+siz+"VAX"+bodmat+way+act;
        var mc = siz+"VAX"+bodmat+way+act+failpos+avolt+sol;


// Set Prices -----------------------------------------------

	var baseprice = eval(pmc+'[0]'); 

// solenoid pricing, weight, & description
	
		if (sol !=''){
		  var solbeg2 = sol.substring(0, 2);
	      var solprice = eval('sol_'+solbeg2+'_price');
	      var solweight = eval('sol_'+solbeg2+'_weight');
	      var soldescrip = (eval('sol_'+solbeg2+'_descrip'))+" "+solvoltage;
	    }
// alert (baseprice);
// alert (solprice);

// TOTAL PRICE

     var price = Math.round(baseprice+solprice);
	 
// alert (price);
	 

// TOTAL WEIGHT
	var baseweight = eval(pmc+'[1]'); 

	var weight = baseweight+solweight;

// DESCRIPTIONS

       var infotext = "<b> Body Material: </b>"+bodmatdescrip+"<br>"+
                       "<b> Size & Connection: </b>"+sizedescrip+" NPT (female)<br>"+
                       "<b> Seats: </b>"+seatmat+" | <b> Stem Seals: </b>"+sealmat+"<br>"+
                       "<b> Actuator: </b>";

            var infotext = infotext + "<br>";
			

		if (soldescrip != "") {
			var infotext = infotext +"<b>Actuator Solenoid: </b>"+soldescrip+"<br>";}


        document.codeform.price.value = price;  
        document.codeform.modelcode.value = mc;

        document.codeform.imgsrc.value = "/VAX/models/"+pic+".jpg";

        document.codeform.id.value = mc;
        document.codeform.info.value = infotext;
        document.codeform.weight.value = weight;
        document.codeform.prodname.value = 'VAX Series';
        document.codeform.prodseries.value = 'High Pressure Axial Valve';


 //  var summary = 'price = base:'+baseprice+' act:'+actprice+' mount:'+mountprice+' sol:'+solprice+' lim:'+limprice;
 //  var summary = summary + '\r\rweight = base:'+baseweight+' act:'+actweight+' mount:'+mountweight+' sol:'+solweight+' lim:'+limweight;


// ------------------------------------------------------------------------

 //  alert(summary);


var img26 = new Image();
img26.src = "models/"+pic+".jpg";

        document.images[ "mainimg" ].src = eval( "img26.src" )
}