function changeTag(val) {

   document.getElementById("p1").style.display="none";
//   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";

   if (val == 1) { 
    document.getElementById("p1").style.display="";
    document.getElementById("i1").src="/opencms/img/focusOn.jpg";
 //   document.getElementById("i2").src="/opencms/img/diabeteOff.jpg";
    document.getElementById("i3").src="/opencms/img/dedicatoOff.jpg";
   } else if (val == 2) {
    document.getElementById("p2").style.display="";
    document.getElementById("i1").src="/opencms/img/focusOff.jpg";
    document.getElementById("i2").src="/opencms/img/diabeteOn.jpg";
    document.getElementById("i3").src="/opencms/img/dedicatoOff.jpg";
   } else if (val == 3) {
    document.getElementById("p3").style.display="";
    document.getElementById("i1").src="/opencms/img/focusOff.jpg";
   // document.getElementById("i2").src="/opencms/img/diabeteOff.jpg";
    document.getElementById("i3").src="/opencms/img/dedicatoOn.jpg";
   } else {

   }

 }

 function apri(url,l,a){
   para = "'scrollbars=yes,resizable=yes,width="+l+",height="+a+"'";
   window.open(url,'','scrollbars=yes,resizable=yes,width='+l+',height='+a);
  
 }

 function apriPrint(url,l,a){
   window.open(url,'',a);
  
 }

 dim = 12;
var min=8;
var max=18;

 function zooma(val) {
  
  ii = "";

  if (val == "0") 
   dim = 12;
  if (val == "+") 
   dim = dim +2;
  if (val == "-")
   dim = dim - 2;

  
  if (document.getElementById("contentCorpo") != null) {
     ii = "contentCorpo";
     document.getElementById(ii).style.fontSize = dim +"px";

   var p = document.getElementsByTagName('ul');
   for(i=0;i<p.length;i++) {
     if ((p[i].id != "headul") && (p[i].id != "bottomul"))
      p[i].style.fontSize = dim+"px"
   }
   var p = document.getElementsByTagName('strong');
   for(i=0;i<p.length;i++) {
     if ((p[i].id != "headul") && (p[i].id != "bottomul"))
      p[i].style.fontSize = dim+"px"
   }

  }  else if (document.getElementById("p1") != null) {
     document.getElementById("p11").style.fontSize = dim +"px";  
     document.getElementById("p21").style.fontSize = dim +"px";  
     document.getElementById("p31").style.fontSize = dim +"px";  
     document.getElementById("p12").style.fontSize = dim +"px";  
     document.getElementById("p22").style.fontSize = dim +"px";  
     document.getElementById("p32").style.fontSize = dim +"px"; 
     document.getElementById("p13").style.fontSize = dim +"px";  
     document.getElementById("p23").style.fontSize = dim +"px";  
     document.getElementById("p33").style.fontSize = dim +"px"; 
     document.getElementById("p14").style.fontSize = dim +"px";  
     document.getElementById("p24").style.fontSize = dim +"px";  
     document.getElementById("p34").style.fontSize = dim +"px"; 
     document.getElementById("container").style.fontSize = dim +"px";  
  }
   

  

 }




function increaseFontSize() {
   var p = document.getElementsByTagName('ul');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=max) {
         s += 1;
      }
      p[i].style.fontSize = s+"px"
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
         var s = 12;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   
}

function  calculateBMI() {
   if(document.BMIform.weight_1.value != "" && document.BMIform.height_1.value != ""){
      var weight = eval(document.BMIform.weight_1.value)
      var height = eval(document.BMIform.height_1.value)
   } else if(document.BMIform.weight_2.value != "" && document.BMIform.height_2.value != ""){
      var weight = eval(document.BMIform.weight_2.value)
      var height = eval(document.BMIform.height_2.value)
   } else {
      alert("E' necessario compilare tutti i campi");
      return false;
   }
   var height2 = height / 100
   var BMI = weight  / (height2 * height2)
   document.BMIform.BodyMassIndex.value=custRound(BMI,1);
   document.BMIform.BodyMassIndex.value = document.BMIform.BodyMassIndex.value.replace(".",",");
}

function custRound(x,places) {
  return (Math.round(x*Math.pow(10,places)))/Math.pow(10,places)
}