function MM_swapImgRestore() { 
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { 
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { 
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { 
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function Mostra(x)
{
  if (document.getElementById(x)) 
	  document.getElementById(x).style.display = '';
}


function Nascondi(x)
{
  if (document.getElementById(x)) 
    document.getElementById(x).style.display = 'none';
}

function MostraNascondi(x)
{
  if (document.getElementById(x)) 
  {
    if (document.getElementById(x).style.display == '')
    {
    	document.getElementById(x).style.display = 'none';
    }
    else
    {
    	document.getElementById(x).style.display = '';
    }
  }
}

function popup(url,w,h,sb)
{
var d = new Date();
myWin=window.open(url,'popupwindow'+escape(d.getTime()),'left='+((screen.width/2)-(w/2))+',top='+((screen.height/2)-(h/2)-40)+',screenX='+((screen.width/2)-(w/2))+',screenY='+((screen.height/2)-(h/2)-40)+',Width='+w+',height='+h+',alwaysRaised=yes,history=no,resizable=no,status=no,scrollbars=' + sb +',menubar=no')	
myWin.opener=self;	
myWin.focus();
}


function IsInteger(sText)
{
   var ValidChars = "0123456789";
   var IsInteger=true;
   var Char;

   for (var i = 0; i < sText.length && IsInteger == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsInteger = false;
         }
      }
   return IsInteger;   
}