function changeFlow(plan){ 
           if (plan=='A'){ document.codeform.flowplan[0].checked = 1; changeCode()}
           if (plan=='D'){ document.codeform.flowplan[1].checked = 1; changeCode()}
           if (plan=='E'){ document.codeform.flowplan[2].checked = 1; changeCode()}
           if (plan=='F'){ document.codeform.flowplan[3].checked = 1; changeCode()}
           if (plan=='G'){ document.codeform.flowplan[4].checked = 1; changeCode()}

    }

     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 siz = "";
        var sizedescrip = "";

        var actweight = 0;
        var actprice = 0;
        var actdescrip = "";
        var actvoltage = "";
        var failpos = "";
		var actt = "";
		var actn = "";
		var actpic = "";
		var actcad = "";
		
        var mountprice = 0;
        var mountweight = 0;
		
		var sol = "";
        var solprice = 0;
        var solweight = 0;
        var soldescrip = "";
        var solvoltage = "";
		var solt = "";
		var solc = "";
		var solv = "";
		var solpic = "";

		var lim = "";
        var limprice = 0;
        var limweight = 0;
        var limdescrip = "";
		var limpic = "";

        var con = "N";
        var condescrip = "NPT (female)";
		var conpic = "N";

        var infotext = "";
        var bodymat = "Brass";
        var seatmat = "RPTFE";
        var sealmat = "RPTFE";

        var infoflo = "";

        var posdescrip = "";
        var posprice = 0;
        var posweight = 0;
        var pos = "";


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


        if (document.codeform.size[0].checked) {var siz = "A"; var sizedescrip = "1/4 inch";};
        if (document.codeform.size[1].checked) {var siz = "B"; var sizedescrip = "3/8 inch";};
        if (document.codeform.size[2].checked) {var siz = "C"; var sizedescrip = "1/2 inch";};
        if (document.codeform.size[3].checked) {var siz = "D"; var sizedescrip = "3/4 inch";};
        if (document.codeform.size[4].checked) {var siz = "E"; var sizedescrip = "1 inch";};
        if (document.codeform.size[5].checked) {var siz = "F"; var sizedescrip = "1-1/4 inch";};
        if (document.codeform.size[6].checked) {var siz = "G"; var sizedescrip = "1-1/2 inch";};
        if (document.codeform.size[7].checked) {var siz = "H"; var sizedescrip = "2 inch";};
        if (document.codeform.size[8].checked) {var siz = "I"; var sizedescrip = "2-1/2 inch";};
        if (document.codeform.size[9].checked) {var siz = "J"; var sizedescrip = "3 inch";};


        if (document.codeform.flowplan[0].checked) {var flo = "A"; var flopos1 = "L1"; var flopos2 = "L2"};
        if (document.codeform.flowplan[1].checked) {var flo = "D"; var flopos1 = "T1"; var flopos2 = "T2"};
        if (document.codeform.flowplan[2].checked) {var flo = "E"; var flopos1 = "T2"; var flopos2 = "T3"};
        if (document.codeform.flowplan[3].checked) {var flo = "F"; var flopos1 = "T3"; var flopos2 = "T4"};
        if (document.codeform.flowplan[4].checked) {var flo = "G"; var flopos1 = "T4"; var flopos2 = "T1"};

	
// Actuators ---------------------------

	if (document.codeform.act_type.value == "") {
		document.getElementById("pre_act").style.display="block";
	} else {
		document.getElementById("pre_act").style.display="none";
		// document.getElementById("acc").className="vis_tr";
	}

    // Pneumatic actuators

		if (actt == "P"){
          if (document.codeform.act_p[0].checked)
		  		{var act = "08S1"; var actn = "OSR8"; var actpic = "08S"; var failpos = " (Fail to POSITION 1)"; var psi = "80"; var solt = "E"; var actt="P";var actcad="08S2"};
				
          if (document.codeform.act_p[1].checked)
		  		{var act = "06S1"; var actn = "OSR6"; var actpic = "08S"; var failpos = " (Fail to POSITION 1)"; var psi = "60"; var solt = "E"; var actt="P";var actcad="06S2"};
				
          if (document.codeform.act_p[2].checked)
		  		{var act = "08S2"; var actn = "OSR8"; var actpic = "08S"; var failpos = " (Fail to POSITION 2)"; var psi = "80"; var solt = "E"; var actt="P";var actcad="08S2"};
				
          if (document.codeform.act_p[3].checked)
		  		{var act = "06S2"; var actn = "OSR6"; var actpic = "08S"; var failpos = " (Fail to POSITION 2)"; var psi = "60"; var solt = "E"; var actt="P";var actcad="06S2"};
			

          if (document.codeform.act_p[4].checked) {var act = "08D"; var actn = "ODA8"; var actpic = "08D"; var psi = "80"; var solt = "C"; var actt="P";var actcad="08D2"};
          if (document.codeform.act_p[5].checked) {var act = "06D"; var actn = "ODA6"; var actpic = "08D"; var psi = "60"; var solt = "C"; var actt="P";var actcad="06D2"};

          if (document.codeform.act_p[6].checked)
		  		{var act = "E8S1"; var actn = "ESR8"; var actpic = "E8S"; var failpos = " (Fail to POSITION 1)"; var psi = "80"; var solt = "E"; var actt="P";var actcad=""};
				
          if (document.codeform.act_p[7].checked)
		  		{var act = "E6S1"; var actn = "ESR6"; var actpic = "E8S"; var failpos = " (Fail to POSITION 1)"; var psi = "60"; var solt = "E"; var actt="P";var actcad=""};
				
          if (document.codeform.act_p[8].checked)
		  		{var act = "E8S2"; var actn = "ESR8"; var actpic = "E8S"; var failpos = " (Fail to POSITION 2)"; var psi = "80"; var solt = "E"; var actt="P";var actcad=""};
				
          if (document.codeform.act_p[9].checked)
		  		{var act = "E6S2"; var actn = "ESR6"; var actpic = "E8S"; var failpos = " (Fail to POSITION 2)"; var psi = "60"; var solt = "E"; var actt="P";var actcad=""};

          if (document.codeform.act_p[10].checked) {var act = "E8D"; var actn = "EDA8"; var actpic = "E8D"; var psi = "80"; var solt = "C"; var actt="P";var actcad=""};
          if (document.codeform.act_p[11].checked) {var act = "E6D"; var actn = "EDA6"; var actpic = "E8D"; var psi = "60"; var solt = "C"; var actt="P";var actcad=""};
	}

     // Electric actuators
	 	if (actt == "E"){ 


        if (document.codeform.act_e[0].checked) 
			{var act = "V4A"; var actn = "VEN4AC"; var actpic = "V4"; var actv = "A"; var actvoltage = " 120 VAC"; var actt="E";var actcad="V4"};
        if (document.codeform.act_e[1].checked) 
			{var act = "V4B"; var actn = "VEN4DC"; var actpic = "V4"; var actv = "B";  var actvoltage = " 24 VDC"; var actt="E";var actcad="V4"};
        if (document.codeform.act_e[2].checked) 
			{var act = "V4F"; var actn = "VEN4DC"; var actpic = "V4"; var actv = "F";  var actvoltage = " 12 VDC"; var actt="E";var actcad="V4"};
		
        if (document.codeform.act_e[3].checked) 
			{var act = "R4A"; var actn = "REN4AC"; var actpic = "R4"; var actv = "A"; var actvoltage = " 120 VAC"; var actt="E";var actcad="R4"};
        if (document.codeform.act_e[4].checked) 
			{var act = "R4B"; var actn = "REN4DC"; var actpic = "R4"; var actv = "B";  var actvoltage = " 24 VDC"; var actt="E";var actcad="R4"};
        if (document.codeform.act_e[5].checked) 
			{var act = "R4F"; var actn = "REN4DC"; var actpic = "R4"; var actv = "F";  var actvoltage = " 12 VDC"; var actt="E";var actcad="R4"};
		
        if (document.codeform.act_e[6].checked) 
			{var act = "B7A"; var actn = "EXPAC"; var actpic = "B7"; var actv = "A";  var actvoltage = " 120 VAC"; var actt="E";var actcad=""};
	}
	
     // Manual Handle actuators
	if (actt == "M"){
        if (document.codeform.act_m.checked) {var act = "M"; var actn = "MAN"; var actpic = "M"; var actt="M";var actcad="M"};
	}

// Solenoids ---------------------------

	if (actt == "P"){
        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";}
			}
	}

// Limit Switches ---------------------------
	if (actt == "P"){
        if (document.codeform.limit[0].checked) {var lim = ""};
        if (document.codeform.limit[1].checked) {var lim = "YF"; var limpic = "YF"};
        if (document.codeform.limit[2].checked) {var lim = "UA"; var limpic = "UB"};
        if (document.codeform.limit[3].checked) {var lim = "UB"; var limpic = "UB"};
		
        if (document.codeform.limit[4].checked) {var lim = "YO"; var limpic = "YW4"};
        if (document.codeform.limit[5].checked) {var lim = "YH"; var limpic = "YW7"};
        if (document.codeform.limit[6].checked) {var lim = "YE"; var limpic = "YW7"};
	}



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


//	var conpic = con.substring(0, 1);

    var pmc = ""+act+sol+lim;
    var pic = ""+actpic+solpic+limpic;
    var mc = siz+"31D"+flo+"X"+act+sol+lim;
    var cadmc = siz+"31D1X"+actcad;
	

// mark cads that are not available ----------------------------------------------------------------
	if (actcad == ""){ var cadmc = ""}		
	if (siz == "I" || siz == "J" || siz == "K"){ var cadmc = ""}	
	

		if (cadmc == ""){var cadmc = "NA";
			document.getElementById('cadlink').innerHTML =
			'<img src="/images/cad_na_icon.gif" alt="CAD files for automated valves" width="27" height="32" border="0" align="absmiddle"><span style="color:#666666"> CAD File not available at this time</span>';
			} else {
			document.getElementById('cadlink').innerHTML =
			'<a href="#" onClick="cad()"><img src="/images/cad_icon.gif" alt="CAD files for automated valves" width="27" height="32" border="0" align="absmiddle"> View/Download CAD File</a>';
			}


// Set Prices -----------------------------------------------
if (actt != "") {	 // ******************************** BEGIN SET PRICING

	var sizedescrip = eval('V31'+conpic+'_'+siz+'.SIZ_DESCRIP');
	
	
 	var baseprice = eval('V31'+conpic+'_'+siz+'.price');
	var baseweight = eval('V31'+conpic+'_'+siz+'.weight');
	
	var actmod = eval('V31'+conpic+'_'+siz+'.'+actn+'.ACT');
	var actprice = eval('ACT_'+actmod+'.price');
	var actweight = eval('ACT_'+actmod+'.weight');
	var actdescrip = eval('ACT_'+actmod+'.descrip')+failpos+actvoltage;


	var mount = eval('V31'+conpic+'_'+siz+'.'+actn+'.MOUNT');
	var mountprice = eval('MOUNT_'+mount+'.price');
	var mountweight = eval('MOUNT_'+mount+'.weight');
	
//	alert('mounting kit is '+mount+' , '+mountprice+' , '+mountweight);
//	alert('actuator is '+actmod+' , '+actprice+' , '+actweight+' , '+actdescrip);
	
	


// 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;
	    }


// limit switch pricing, weight, & description

	if (lim !=''){
	      var limprice = eval(lim+'_price');
	      var limweight = eval(lim+'_weight');
	      var limdescrip = eval(lim+'_descrip');
	    }

// TOTAL PRICE

     var price = Math.round(baseprice+actprice+mountprice+solprice+limprice);

// TOTAL WEIGHT

	var weight = baseweight+actweight+mountweight+solweight+limweight;
	
 } // END PRICING
 
 if (actt == "") {	// ******************************** BEGIN NO ACTUATOR SELECTED
	var actdescrip = "<span style='color:#CC0000;'>Not Selected Yet</span>";
	var mc = "Incomplete";
	var pic = "invalid"+conpic;
}

	

// DESCRIPTIONS -------------------------------------------------------------------------------

       var infotext = "<b> Body Material: </b>"+bodymat+"<br>"+
                       "<b> Size & Connection: </b>"+sizedescrip+" (female)<br>"+
                       "<b> Seats: </b> RPTFE <b> Seals: </b> RPTFE<br>"+
                       "<b> Actuator: </b>"+actdescrip;

		if (psi != "") {
			var infotext = infotext +"<br>(sized for using "+psi+"psi supply air in applications up to 300psi DP)";}

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

		if (limdescrip != "") {
			var infotext = infotext +"<br><b>Limit Switch: </b>"+limdescrip;}

            var infotext = infotext + "<br>"+
			"<table>"+
			"<tr>"+
				"<td><b>Flow Plan: </b>"+flo+"</td>"+
				"<td></td>"+
				"<td><img src=\"http://assuredautomation.com/images/ports/"+flopos1+".JPG\" width=40 height=40 border=0><br><b>Pos. 1</b></td>"+
				"<td></td>"+
				"<td><img src=\"http://assuredautomation.com/images/ports/"+flopos2+".JPG\" width=40 height=40 border=0><br><b>Pos. 2</b></td>"+
				"</tr></table>";
			
			
			
if (siz == ""){var pic = "08S"; var price = ""; var mc = "Select Size"}

        document.codeform.cadcode.value = cadmc;



if (mc == "Incomplete"){ 	
	document.getElementById("add").disabled=true;
	document.getElementById("add").className="BUTTOND";
} else {
	document.getElementById("add").disabled=false;
	document.getElementById("add").className="BUTTON";
}	
		

        document.codeform.actmod.value = actdescrip;
		if (actt=="") {document.codeform.actmod.value = "not selected";}

        document.codeform.price.value = price;  
		document.getElementById('listprice').innerHTML = price;
		if (price != "") {
			var qty = document.codeform.qty.value;
			var unit = document.codeform.price.value;
			var extprice = unit * qty;
			document.getElementById('extendedPrice').innerHTML= extprice;
		} else {
			document.getElementById('extendedPrice').innerHTML= "";
		}

        document.codeform.modelcode.value = mc;
		document.getElementById('PN').innerHTML = mc;

        document.codeform.imgsrc.value = "/31D/models/"+pic+".jpg";

        document.codeform.id.value = mc;
        document.codeform.info.value = infotext;
        document.codeform.weight.value = weight;


  var psummary = 'price = base:'+baseprice+'<br> act:'+actprice+'<br> mount:'+mountprice+'<br> sol:'+solprice+'<br> lim:'+limprice+'<br> pos:'+posprice;
  var wsummary = 'weight = base:'+baseweight+'<br> act:'+actweight+'<br> mount:'+mountweight+'<br> sol:'+solweight+'<br> lim:'+limweight+'<br> pos:'+posweight;


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

 //  alert(summary);

//    document.getElementById('infospan').innerHTML = "<table class='small'><tr><td align='left'>"+infotext+"</td></tr></table>";

    document.getElementById('infospan').innerHTML = "<table class='small'><tr><td align='left'><span class='Headertextcart'>31D Series 3-way Ball Valve</span><br>"+infotext+"</td></tr></table>";

   document.getElementById('calcspan').innerHTML = "<table class='small'><tr><td align='right'>"+psummary+"</td><td align='right'>"+wsummary+"</td></tr></table>";


var img33D = new Image();
img33D.src = "models/"+pic+".jpg";

        document.images[ "mainimg" ].src = eval( "img33D.src" )
}