var df2;
function CV_Main(){df2=document.forms['CV'];}
function CV_Calcular(x){
  var x,z;
  if (Number(x)==0 || x=="," || x==".") {df2.CV_I2.value="";return true;}
  z=CV_Entrada(x); if(!z){CV_Error();return false;}
  z=CV_Salida(z); if(!z){CV_Error();return false;}
  df2.CV_I2.value=z;
}
function CV_Entrada(x){
  var x,z;
  z=Number("0" + x.replace(",","."));
  if (isNaN(z)==true) {return false;}
  z=Math.abs(z);
  return z;
}
function CV_Salida(x){
  var x,z;
  z=x;
  switch(df2.CV_S1.value){
    case "cm": z=Math.round(z*10); break;
    case "mt": z=Math.round(z*1000); break;
    case "pl": z=Math.round(z*25.4); break; 
  }
  if(z>9999999){return false;}
  z=String(z);
  z=z.replace(".",",");     // presentamos en formato europeo
  return z;
}
function CV_Error(){
  df2.CV_I1.className="CV_I1E";
  df2.CV_I1.focus();
  df2.CV_I1.select();
  df2.CV_I2.value="";
}