function checkNumeric(e) {
    if(!e) var e = window.event;
    var charCode = (e.which) ? e.which : e.keyCode
    return (charCode == 45 || charCode == 13 || charCode == 8 || charCode == 9 || charCode == 189 || charCode == 109 || (charCode >= 48 && charCode <= 58) );
}

function checkNumericAndSkip(e,me,next) {
    
    var length;
    
    if ( navigator.userAgent.indexOf('MSIE') != -1 ) length = 4;
    else if ( navigator.userAgent.indexOf('Firefox') != -1 ) length = 3;
    else length = 4;

    if(!e) var e = window.event;
    var charCode = (e.which) ? e.which : e.keyCode
    
    
    if (charCode == 45 || charCode == 13 || charCode == 8 || charCode == 9 || charCode == 189 || charCode == 109 || (charCode >= 48 && charCode <= 58) ) {
      if (me.value.length == length) {
            if (charCode != 8)
                document.getElementsByName(next)[0].focus();
        }
      return true;
    }
    
    return false;
}

function checkLeng(me,idLabel,len) {
   document.getElementById(idLabel).innerHTML = '( max ' + (len-me.value.length) + ' battute )';
   if ( (len-me.value.length) < 0 ) {
       document.getElementById(idLabel).style.color = 'red';
   }
   else {
    document.getElementById(idLabel).style.color = '';
   }
    return;
}

function ShowHide(element) {
  if (document.getElementById(element).style.display == "none") {
    document.getElementById(element).style.display = "block";
    document.getElementById(element+"F").src = "images/freccia_2.gif";
  }
  else {
    document.getElementById(element).style.display = "none";
    document.getElementById(element+"F").src = "images/freccia_1.gif";
  }
}