var netlistcreator={
  matrixxform:function(point,matrix){
    var pin=webtronics.circuit.svgRoot.createSVGPoint();
    pin.x=point.x;
    pin.y=point.y;
    pin=pin.matrixTransform(matrix);
    return {x:Math.round(pin.x),y:Math.round(pin.y)};
  },

  /*tests if 2 point are within 3 pixels of each other*/
  ispoint:function(point1,point2){
    return (Math.abs(point2.x-point1.x)<3)&&(Math.abs(point2.y-point1.y)<3); 
  },

  sortnetlist:function(list){
    var G=[];
    var S=[];
    var A=[];
    var B=[];
    var C=[];
    var D=[];
    var I=[];
    var J=[];
    var K=[];
    var L=[];
    var M=[];
    var N=[];
    var P=[];
    var Q=[];
    var R=[];
    var U=[];
    var V=[];
    var wire=[];
    var other=[]
    for(var i=0;i<list.length;i++){
      if(list[i].type=='gnd'){
        G.push(list[i]);
      }
      else if(list[i].type=='v'){
        V.push(list[i]);
      }
      else if(list[i].type=='wire'){
        wire.push(list[i]);			
      }		
      else if(list[i].type=='b'){
        B.push(list[i]);
      }
      else if(list[i].type=='c'){
        C.push(list[i]);	
      }
      else if(list[i].type=='d'){
        D.push(list[i]);
      }
      else if(list[i].type=='i'){	
        J.push(list[i]);
      }
      else if(list[i].type=='j'){	
        J.push(list[i]);
      }
      else if(list[i].type=='k'){
        K.push(list[i]);
      }
      else if(list[i].type=='l'){
        L.push(list[i]);
      }
      else if(list[i].type=='m'){
        M.push(list[i]);
      }
      else if(list[i].type=='n'){
        N.push(list[i]);
      }
      else if(list[i].type=='plot'){
        P.push(list[i]);
      }
      else if(list[i].type=='q'){
        Q.push(list[i]);
      }
      else if(list[i].type=='r'){
        R.push(list[i]);
      }
      else if(list[i].type=='u'){	
        U.push(list[i]);
      }
      /* this is the best way I could think to tell if a part i digital */
      else if(list[i].category=="digital"){	
        A.push(list[i]);
      }
      else {
        list[i].error='unknown device';
        other.push(list[i]);
      }
    }

    var sortfunction=function(a,b){
      var apart=a.id.replace(a.type,"");
      var bpart=b.id.replace(b.type,"");
      if(!apart)apart=0;
      if(!bpart)bpart=0;
      return (apart>bpart);
    };
    V.sort(sortfunction);
    wire.sort(sortfunction);
    B.sort(sortfunction);
    C.sort(sortfunction);
    D.sort(sortfunction);
    I.sort(sortfunction);
    J.sort(sortfunction);
    K.sort(sortfunction);
    L.sort(sortfunction);
    M.sort(sortfunction);
    N.sort(sortfunction);
    P.sort(sortfunction);
    Q.sort(sortfunction);
    R.sort(sortfunction);
    U.sort(sortfunction);
    A.sort(sortfunction);

    var newlist=[];
    G.each(function(item){newlist.push(item)});		
    G.reverse();
    V.each(function(item){newlist.push(item)});		
    wire.each(function(item){newlist.push(item)});		
    B.each(function(item){newlist.push(item)});		
    C.each(function(item){newlist.push(item)});		
    D.each(function(item){newlist.push(item)});		
    I.each(function(item){newlist.push(item)});		
    J.each(function(item){newlist.push(item)});		
    K.each(function(item){newlist.push(item)});		
    L.each(function(item){newlist.push(item)});		
    M.each(function(item){newlist.push(item)});		
    N.each(function(item){newlist.push(item)});		
    Q.each(function(item){newlist.push(item)});		
    R.each(function(item){newlist.push(item)});
    U.each(function(item){newlist.push(item)});		
    A.each(function(item){newlist.push(item)});		
    other.each(function(item){newlist.push(item)});		

    /*plots go last*/
    P.each(function(item){newlist.push(item)});		


    return newlist;
  },

  /* draws wires to namewire ports with the same id*/
  connectnamewires:function(list){

    for(var i=0;i<list.length;i++){
      if((list[i].type=="wire") || (list[i].type=="gnd")){
        for(var j=i;j<list.length;j++){
         if( (list[i]!=list[j]) && ((list[i].id==list[j].id) || (list[i].type=="gnd" && list[j].type=="gnd"))   ){
           var line= webtronics.circuit.createline('yellow',1,list[i]['analogpins'][0]['x'],list[i]['analogpins'][0]['y'],list[j]['analogpins'][0]['x'],list[j]['analogpins'][0]['y']);
           line.setAttributeNS(null,'class','webtronics_namewire_connector');
           webtronics.circuit.info.appendChild(line);
	  //console.log(line);            
	  break; 
	}
}    
}
}
},

/*check for vectors and convert them*/
tovector:function(pin,nodenumber){
  var v ="";   
  if(pin.parentNode.tagName=="wtx:vector"){
    var vector=Element.descendants(pin.parentNode);
    if(pin==vector[0]){v+="["}
      v+="a"+nodenumber;
    if(pin==vector[vector.length-1]){v+="]";}
  }
  else{
    v+="a"+nodenumber;
  }
  
  return v;
},

/*
 *    <wtx:pins>
 *		<wtx:analog>
 *		  <wtx:node index="1" x="0" y="10"></wtx:node>
 *		  <wtx:node index="2" x="40" y="10"></wtx:node>
 *		</wtx:analog>
 *    </wtx:pins>
 *    <wtx:id>r</wtx:id>
 *    <wtx:type>r</wtx:type>
 *    <wtx:name>testresistor</wtx:name>
 *    <wtx:category>resistors</wtx:category>
 *    <wtx:value></wtx:value>
 *    <wtx:label></wtx:label>
 *    <wtx:spice></wtx:spice>
 *    <wtx:flip></wtx:flip>
 *    <wtx:model></wtx:model>
 */


 getwtxdata:function(parts){
  list=[];
  for(var i=0;i<parts.length;i++){
    var part={error:"", elem:{}, analogpins:[],digitalpins:[],amplitude:"",phase:"",offsetvoltage:"",voltageamplitude:"",frequency:"",delaytime:"",dampingfactor:"",type:"", name:"", category:"", value:"", spice:"", model:"",measure:"", risedelay:"", falldelay:"", pulval1:"", pulval2:"", pulval3:"", pulval4:"", pulval5:"", pulval6:"", pulval7:"", eval1:"", eval2:"", eval3:"", eval4:"", eval5:"", eval6:"", pwlval1:"", pwlval2:"", pwlval3:"", pwlval4:"", pwlval5:"", pwlval6:"", pwlval7:"", pwlval8:""
  }
    /*
     *        try{
     *            part.nodes=this.getwtxpins(part[i]);        
  }
  catch{part.error="wtx:pins not found"}
  */
  part.elem=parts[i];

  try{
    var category=webtronics.circuit.getwtxtagname(parts[i],"analog")[0];
    var nodes = webtronics.circuit.getwtxtagname(category,"node");
    for(var j=0;j<nodes.length;j++){
     var point = this.matrixxform( {x:webtronics.circuit.getwtxattribute(nodes[j],"x"),y:webtronics.circuit.getwtxattribute(nodes[j],"y")},webtronics.circuit.parseMatrix(part.elem));
     part.analogpins.push({index:webtronics.circuit.getwtxattribute(nodes[j],"index"),x:point.x,y:point.y,node:undefined}) ;
   }
      //sort nodes int correct order
      part.analogpins.sort(function(a,b){if (a.name > b.name)return 1;if (a.name < b.name)return -1;return 0;});
    }
    catch(e){console.log("no analog pins found");}
    
    try{
      var category=webtronics.circuit.getwtxtagname(parts[i],"digital")[0];
      var nodes = webtronics.circuit.getwtxtagname(category,"node");
      for(var j=0;j<nodes.length;j++){
       var point = this.matrixxform( {x:webtronics.circuit.getwtxattribute(nodes[j],"x"),y:webtronics.circuit.getwtxattribute(nodes[j],"y")},webtronics.circuit.parseMatrix(part.elem));
       part.digitalpins.push({index:webtronics.circuit.getwtxattribute(nodes[j],"index"),x:point.x,y:point.y,node:undefined}) ;
     }
     part.digitalpins.sort(function(a,b){if (a.name > b.name)return 1;if (a.name < b.name)return -1;return 0;});
   }
   catch(e){console.log("no digital pins found");}
   try{
    part.id=this.readwtx(parts[i],'id');
 if(part.type=="gnd"){part.id=part.type;this.writewtx(parts[i],'id',part.id);console.log(this.readwtx(parts[i],'id')+" sfd ");}
  }
  catch(e){part.error="wtx:id not found";}    
  try{
    part.type=this.readwtx(parts[i],'type');
  }
  catch(e){
    part.error="wtx:type not found";
  }
  try{
    part.name=this.readwtx(parts[i],'name');
  }
  catch(e){part.error="wtx:name not found";}
  try{
    part.category=this.readwtx(parts[i],'category');
  }
  catch(e){part.error="wtx:category not found";}    
  try{
    part.value=this.readwtx(parts[i],'value');  

  }
  catch(e){part.error="wtx:value not found";}    
  try{
    part.spice=this.readwtx(parts[i],'spice');
  }
  catch(e){part.error="wtx:spice not found";}    
  try{        
    part.model=this.readwtx(parts[i],'model');
  }
  catch(e){part.error="wtx:model not found";} 
    //for ac voltage source
    try{        
      part.amplitude=this.readwtx(parts[i],'amplitude');


    }

    catch(e){part.error="wtx:amplitude not found";} 
    try{        
      part.phase=this.readwtx(parts[i],'phase');
    }
    catch(e){part.error="wtx:phase not found";} 

    //for sinusoidal voltage source

    try{        
      part.offsetvoltage=this.readwtx(parts[i],'offsetvoltage');
    }
    catch(e){part.error="wtx:offsetvoltage not found";} 

    try{        
      part.voltageamplitude=this.readwtx(parts[i],'voltageamplitude');
    }
    catch(e){part.error="wtx:voltageamplitude not found";} 
    try{        
      part.frequency=this.readwtx(parts[i],'frequency');
    }
    catch(e){part.error="wtx:frequency not found";} 
    try{        
      part.delaytime=this.readwtx(parts[i],'delaytime');
    }
    catch(e){part.error="wtx:delaytime not found";} 
    try{        
      part.dampingfactor=this.readwtx(parts[i],'dampingfactor');
    }
    catch(e){part.error="wtx:dampingfactor not found";} 

    // FOR pulse volatge source  
    try{        
      part.pulval1=this.readwtx(parts[i],'pulval1');
    }
    catch(e){part.error="wtx:Initial Value not found";} 

    try{        
      part.pulval2=this.readwtx(parts[i],'pulval2');
    }
    catch(e){part.error="wtx:Pulse Value not found";} 
    try{        
      part.pulval3=this.readwtx(parts[i],'pulval3');
    }
    catch(e){part.error="wtx:Delay Time not found";} 
    try{        
      part.pulval4=this.readwtx(parts[i],'pulval4');
    }
    catch(e){part.error="wtx:Rise Time not found";} 

    try{        
      part.pulval5=this.readwtx(parts[i],'pulval5');
    }
    catch(e){part.error="wtx:Fall Time not found";} 
    try{        
      part.pulval6=this.readwtx(parts[i],'pulval6');
    }
    catch(e){part.error="wtx:Pulse Period not found";} 
    try{        
      part.pulval7=this.readwtx(parts[i],'pulval7');
    }
    catch(e){part.error="wtx:Pulse Width not found";} 

    //FOR pwl volatge source
    try{        
      part.pwlval1=this.readwtx(parts[i],'pwlval1');
    }
    catch(e){part.error="wtx:Time T1 Value not found";} 

    try{        
      part.pwlval2=this.readwtx(parts[i],'pwlval2');
    }
    catch(e){part.error="wtx:Voltage V1 Value not found";} 
    try{        
      part.pwlval3=this.readwtx(parts[i],'pwlval3');
    }
    catch(e){part.error="wtx:Time T2 Value not found";} 
    try{        
      part.pwlval4=this.readwtx(parts[i],'pwlval4');
    }
    catch(e){part.error="wtx:Voltage V2 value not found";} 

    try{        
      part.pwlval5=this.readwtx(parts[i],'pwlval5');
    }
    catch(e){part.error="wtx:Time T3 value not found";} 
    try{        
      part.pwlval6=this.readwtx(parts[i],'pwlval6');
    }
    catch(e){part.error="wtx:Voltage V3 value not found";} 
    try{        
      part.pwlval7=this.readwtx(parts[i],'pwlval7');
    }
    catch(e){part.error="wtx:Time T4 Value not found";} 
    try{        
      part.pwlval8=this.readwtx(parts[i],'pwlval8');
    }
    catch(e){part.error="wtx:Voltage V4 Value not found";} 

//FOR exponential volatge source
try{        
  part.eval1=this.readwtx(parts[i],'eval1');
}
catch(e){part.error="wtx:Initial Value not found";} 

try{        
  part.eval2=this.readwtx(parts[i],'eval2');
}
catch(e){part.error="wtx:Pulse Value not found";} 
try{        
  part.eval3=this.readwtx(parts[i],'eval3');
}
catch(e){part.error="wtx:Rise Time Delay value not found";} 
try{        
  part.eval4=this.readwtx(parts[i],'eval4');
}
catch(e){part.error="wtx:Rise Time Constant value not found";} 

try{        
  part.eval5=this.readwtx(parts[i],'eval5');
}
catch(e){part.error="wtx:Fall Time Delay value not found";} 
try{        
  part.eval6=this.readwtx(parts[i],'eval6');
}
catch(e){part.error="wtx:Fall Time Constan value not found";} 

//digital and
 try{
	part.risedelay=this.readwtx(parts[i],'risedelay');
    }
catch(e){
        part.error="wtx:risedelay not found";}

try{
	part.falldelay=this.readwtx(parts[i],'falldelay');
    }
catch(e){
        part.error="wtx:risedelay not found";}

try{
	part.inputload=this.readwtx(parts[i],'inputload');
    }
catch(e){
        part.error="wtx:inputload not found";}


    //special tag for parts that do simulation
    try{        
      part.measure=this.readwtx(parts[i],'measure');
    }
    catch(e){}    

    list.push(part);
  }
  return list;
  
},
/*detect analog and digital mix*/
mixedsignals:function(analogwires,digitalwires){

  for(var j=1;j<analogwires.length;j++){
    var crossed=this.getconnected(digitalwires,analogwires[j]);
    if(crossed>-1){
      return true;  
    }
  }
  return false;
},

/* test if wires are connected anywhere*/
getconnected:function(wirelist,wire){
  for(var i=0;i<wirelist.length;i++){
    for(var j=0;j<wirelist[i].length;j++){
      for(var k=0;k<wire.length;k++){
       if(this.ispoint(wirelist[i][j],wire[k])){
         return i;
       }
     }
   }
 }
 return -1;
},

//returns points connected by lines
//it is recursive and should be called with NULL for wires
followwires:function(wires,pin){
  if(wires==null)wires=[];
  var points=[];
  points.push(pin);	
  var lines =webtronics.circuit.getwithselector('#webtronics_drawing > line, #information > .webtronics_namewire_connector');
  for(var i =0 ;i<lines.length;i++){
    var point1={x:lines[i].getAttribute('x1')-0,y:lines[i].getAttribute('y1')-0};
    var point2={x:lines[i].getAttribute('x2')-0,y:lines[i].getAttribute('y2')-0};
    if(wires.indexOf(lines[i])<0){		
      if(this.ispoint(point1,pin)){
       wires.push(lines[i]);
       var p=this.followwires(wires,point2);
       for(var j=0;j<p.length;j++)points.push(p[j]);				
     }
   else if(this.ispoint(point2,pin)){
     wires.push(lines[i]);
     var p=this.followwires(wires,point1);
     for(var j=0;j<p.length;j++)points.push(p[j]);				
   }
}
}
return points;
},



//sets the node numbers for parts
numberwires:function(parts){
  var analogpoints=[];
  var digitalpoints=[];
  for(var i=0;i<parts.length; i++){
    //analog node numbering loop
    if(parts[i].type=="wire")continue;

    if( parts[i].type=="gnd"){
      if (analogpoints.length==0 ){
       var wire=this.followwires(null,{x:parts[i].analogpins[0]['x'],y:parts[i].analogpins[0]['y']});
       analogpoints.push(wire);
//add this node to thelist of digital wires
digitalpoints.push(wire);
}
parts[i].analogpins[0]["node"]=0;
//      parts[i].digitalpins[0]["node"]=0;
continue;
}
if(parts[i].analogpins!=undefined){
  for(var j=0;j<parts[i].analogpins.length;j++){
   var wire=this.followwires(null,{x:parts[i].analogpins[j]['x'],y:parts[i].analogpins[j]['y']});
   var found=this.getconnected(analogpoints,wire);
   if(found<0){
     analogpoints.push(wire);
     parts[i].analogpins[j]["node"]=analogpoints.length-1;
   }
   else{
     parts[i].analogpins[j]["node"]=found;
   }
 }
}
    //digital node numbering loop
    
    if(parts[i].digitalpins!=undefined){
      for(var j=0;j<parts[i].digitalpins.length;j++){
       var wire=this.followwires(null,{x:parts[i].digitalpins[j]['x'],y:parts[i].digitalpins[j]['y']});
       var found=this.getconnected(digitalpoints,wire);
       if(found<0){
         digitalpoints.push(wire);
         parts[i].digitalpins[j]["node"]=digitalpoints.length-1;
       }
       else{
         parts[i].digitalpins[j]["node"]=found;
       }
     }	
   }
 }
  //returns true if digital and analog are mixed
  return this.mixedsignals(analogpoints,digitalpoints);
} , 



/* creates all netlist data from parts data*/
getnodes:function(parts){
  var sections={netlist:[],coupling:[],firstdir:[],simulation:[],lastdir:[]};    
  
  //if(this.numberwires(parts))return {firstdir:[],netlist:[{error:"pin is both analog and digital"}],lastdir:[],plot:[]};
  this.numberwires(parts);
  for(var i=0;i<parts.length; i++){
    //    if(parts[i].type=="wire")continue;
    // check what type of simulation to use
    if(parts[i].type=='gnd' || parts[i].type=='wire')continue;
    if(parts[i].type=="plot"){
     if(sections.simulation.length==0){
       sections.simulation.push(".op");
       sections.simulation.push(".print tran");
     }
     if(sections.simulation[1] !=undefined && sections.simulation[1].match(/\.print\sac/g)==null){
       sections.simulation[1]+=" v("+parts[i].analogpins[0]["node"]+")";
       sections.simulation[1]+=" "+parts[i].measure;
       if(parts[i].model)sections.simulation.push(parts[i].model);
     }


   }
   else{
    if(parts[i].type=="v"){
     if(sections.simulation.length==0 && parts[i].model.length){
       sections.simulation.push(".op");
       sections.simulation.push(".print ac "+parts[i].measure);
       sections.simulation.push(parts[i].model);
     }
   }
   else if(parts[i].type=="l"){
     if(parts[i].model.length){
       sections.coupling.push(parts[i].model);  
     }
   }
   else{
     if(parts[i].model.match(/\.mod/i) && !parts[i].id.match(/^x/))parts[i].id="x"+parts[i].id;
     if(parts[i].model.length)sections.firstdir.push(parts[i].model);

   }
      //create pins array
      var net={error:parts[i].error,pwlval1:parts[i].pwlval1,pwlval2:parts[i].pwlval2,pwlval3:parts[i].pwlval3,pwlval4:parts[i].pwlval4,pwlval5:parts[i].pwlval5,pwlval6:parts[i].pwlval6,pwlval7:parts[i].pwlval7,pwlval8:parts[i].pwlval8,pulval1:parts[i].pulval1,pulval2:parts[i].pulval2,pulval3:parts[i].pulval3,pulval4:parts[i].pulval4,pulval5:parts[i].pulval5,pulval6:parts[i].pulval6,pulval7:parts[i].pulval7,name:parts[i].name,
        partid:parts[i].id,pins:{analog:parts[i].analogpins,digital:parts[i].digitalpins},model:parts[i].value,amplitude:parts[i].amplitude,
      phase:parts[i].phase, risedelay:parts[i].risedelay, inputload:parts[i].inputload, falldelay:parts[i].falldelay, offsetvoltage:parts[i].offsetvoltage,voltageamplitude:parts[i].voltageamplitude,frequency:parts[i].frequency,
      delaytime:parts[i].delaytime,dampingfactor:parts[i].dampingfactor,eval1:parts[i].eval1,eval2:parts[i].eval2,eval3:parts[i].eval3,eval4:parts[i].eval4,eval5:parts[i].eval5,eval6:parts[i].eval6};
      if(net!=null)sections.netlist.push(net);
    }
    
  }
  
  return sections;
},

/* organizes data into netlist*/
createnetlist:function(responsefunc){

  var parts=webtronics.circuit.getwithselector('#webtronics_drawing > g');

  if(parts.length<1){
    responsefunc("no parts found \n");
    return;
  }



  var partswtx=this.sortnetlist(this.getwtxdata(parts));


  if(partswtx[0].type.toLowerCase()!='gnd'){
    responsefunc('no ground node');
    return;
  }
  this.connectnamewires(partswtx);
  
  var spice="*ngspice netlist * \n";
  var sections=this.getnodes(partswtx);
  
  //dump models into spice	

  if(sections.netlist.length){
    var command="";
    for(var i=0;i<sections.netlist.length;i++){
      if(sections.netlist[i].error!=""){
       spice+=sections.netlist[i].error+'\n';
       continue;
     }
     command=sections.netlist[i].partid;
     var pins=[];
     for(var j=0;j<sections.netlist[i].pins['analog'].length;j++)pins.push(sections.netlist[i].pins['analog'][j]);
      for(var j=0;j<sections.netlist[i].pins['digital'].length;j++)pins.push(sections.netlist[i].pins['digital'][j]);
        pins.sort(function(a,b){return a.index > b.index? 1:a.index < b.index?-1:0;})
//      console.log(pins);
for(var j=0;j<pins.length;j++){command += " "+pins[j].node;}

  if(sections.netlist[i].name=="ac"){
   command+=" "+"AC "+sections.netlist[i].amplitude+" "+sections.netlist[i].phase;
 }else if(sections.netlist[i].name=="sinvoltagesource"){
   command+=" "+"SIN ("+sections.netlist[i].offsetvoltage+" "+sections.netlist[i].voltageamplitude+" "+sections.netlist[i].frequency+" "+sections.netlist[i].delaytime+" "+sections.netlist[i].dampingfactor+")";
 }else if(sections.netlist[i].name=="battery"){
  command+=" "+"DC "+sections.netlist[i].model;
}else if(sections.netlist[i].name=="current"){
 command+=" "+"dc "+sections.netlist[i].model;
}else if(sections.netlist[i].name=="pulse"){
  command+=" "+"PULSE ("+sections.netlist[i].pulval1+" "+sections.netlist[i].pulval2+" "+sections.netlist[i].pulval3+" "+sections.netlist[i].pulval4+" "+sections.netlist[i].pulval5+" "+sections.netlist[i].pulval6+" "+sections.netlist[i].pulval7+")";
}
else if(sections.netlist[i].name=="pwl"){
  command+=" "+"PWL ("+sections.netlist[i].pwlval1+" "+sections.netlist[i].pwlval2+" "+sections.netlist[i].pwlval3+" "+sections.netlist[i].pwlval4+" "+sections.netlist[i].pwlval5+" "+sections.netlist[i].pwlval6+" "+sections.netlist[i].pwlval7+" "+sections.netlist[i].pwlval8+")";
}
else if(sections.netlist[i].name=="exponential"){
  command+=" "+"EXP ("+sections.netlist[i].eval1+" "+sections.netlist[i].eval2+" "+sections.netlist[i].eval3+" "+sections.netlist[i].eval4+" "+sections.netlist[i].eval5+" "+sections.netlist[i].eval6+")";
}
else if(sections.netlist[i].name=="and"){
  command+=" "+sections.netlist[i].risedelay+" "+sections.netlist[i].falldelay;
}
else{
  command+=" "+sections.netlist[i].model;
}
if(command!="")spice+=command+'\n';
}
}

if(sections.coupling.length){
  for(var i=0;i<sections.coupling.length;i++){
    spice+=sections.coupling[i]+'\n';
  }
}


var modelloader={
  modeltext:"",
  modelcount:0,
  download:function(name){
   var found=false;
   for( var i=0;i<webtronics.partslists.length;i++){

    if(JSON.stringify(webtronics.partslists[i]).indexOf(name)!=-1){
     found=true;
					if(webtronics.partslists[i].url.indexOf("http://")==-1){//see if path is local

            openfile( webtronics.partslists[i].url+"/spice/"+ name,this.responder);
          }
          else{
            server.requestfile(list.url,this.responder);
          }
          break;
          this.modelcount++;
        }

      }
      if(!found)console.log("model not found");
    },
    finish:function(){
      spice+=modelloader.modeltext; 
      if(sections.simulation.length){
        for(var i=0;i<sections.simulation.length;i++){
         if(sections.simulation[i]!="")spice+=sections.simulation[i]+"\n";
       }
     }
     if(sections.lastdir.length){
      sections.lastdir=sections.lastdir.uniq();
      for(var i=0;i<sections.lastdir.length;i++){
        if(sections.lastdir[i]!="")spice+=sections.lastdir[i]+"\n";
      }
    }
    responsefunc(spice);
  },

  responder:function(text){
    console.log("reponded");
    modelloader.modeltext+=text;
    if(!modelloader.modelcount){
      modelloader.finish();
      spice=spice.concat(".end \n");	

    }       
  }
}


if(sections.firstdir.length){
  sections.firstdir=sections.firstdir.uniq();

  for(var i=0;i<sections.firstdir.length;i++){
//      console.log(sections.firstdir[i]);

if(sections.firstdir[i].length){



 modelloader.download(sections.firstdir[i],sections,webtronics.partslists);
}
}
}
else modelloader.finish();
var connector=webtronics.circuit.getwithselector('#information > .webtronics_namewire_connector')
for(var i=0;i<connector.length;i++)connector[i].parentNode.removeChild(connector[i]);



},





writeconnects:function(pins){

  var str=[];
  
  for(var i=0;i<pins.length;i++){
    str[i] = pins[i].x +','+pins[i].y;
  }
  return str.join(';'); 
},


getconnects:function(elem){
  var pins=[];    
  var nodes = this.getwtxtagname(elem,"node");
  for(var j=0;j<nodes.length;j++){
//	console.log(nodes[j]);
//	console.log(this.parseMatrix(elem));
var point = this.matrixxform( {x:this.getwtxattribute(nodes[j],"x"),y:this.getwtxattribute(nodes[j],"y")},this.parseMatrix(elem));
pins.push({x:point.x,y:point.y}) ;
}
      //sort nodes int correct order
      return pins;
    },

    isconnect:function(pin,radius,x,y){
      return (Math.abs(pin.x-x)<3)&&(Math.abs(pin.y-y)<3); 
    },

    isconnects:function(parts,radius,x,y){

      for(var i=0; i<parts.length; i++){
        if(parts[i].tagName =='g'){
         var pins=this.getconnects(parts[i]);
         if(pins){
           for(var j=0;j<pins.length;j++){
             if(this.isconnect(pins[j],radius,x,y)){
               return pins[j];
             }
           }
         }
       }
     }
     return null;
   },

//get the number by part id and leg
getnodenumber:function(name, leg){
  //get part by id
  var part=webtronics.circuit.getwithselector("#webtronics_drawing wtx:id "+name )[0];
  var nodes=part.getwtxtagname("node");
  for(var i=0;i<nodes.length;i++){
    if(nodes[i].getAttribute("index")==leg){
      var wire = this.followwires(null,{ x:this.getwtxattribute(node,"x"),y:this.getwtxattribute(node,"y")});
      return this.getconnected(analogwires,wire);
    }
  }
  return -1
},
getwtxtagname:function(elem,tagname){


  var tag=elem.getElementsByTagName("wtx:"+tagname);
  if(!tag.length){
    tag=elem.getElementsByTagName(tagname);
  }
  if(!tag.length){
    tag=elem.getElementsByTagNameNS(this.wtxNs,tagname);
  }
  if(!tag.length){
    tag=elem.getElementsByTagNameNS("*",tagname);
  }
  return tag;
  
},

getwtxattribute:function(elem,attrib){
  var value=elem.getAttribute(attrib);
  if(value==undefined)value=elem.getAttributeNS(this.wtxNs,attrib);
  if(value==undefined)value=elem.getAttributeNS("*",attrib);
  
  return value;
},

readwtx:function(elem,value){
  var tag=this.getwtxtagname(elem,value);
  if(tag[0])return tag[0].textContent;
  else return "";
},

writewtx:function(elem,value,text){
  var tag=this.getwtxtagname(elem,value);
  if(tag[0])tag[0].textContent=text;
},



}