/* verifica che siano inseriti solo numeri */
function verif_nombre(champ)
{
var chiffres = new RegExp("[0-9\.]"); 
var verif;
var points = 0; 

for(x = 0; x < champ.value.length; x++)
{
verif = chiffres.test(champ.value.charAt(x));
if(champ.value.charAt(x) == "."){points++;} 
if(points > 1){verif = false; points = 1;} 
if(verif == false){champ.value = champ.value.substr(0,x) + champ.value.substr(x+1,champ.value.length-x+1); x--;}
}
}

//conferma eliminazione
function CheckDelete (url,mess)
{
  if (confirm(mess))
  {
   parent.location=url;
  }
  else
  {
    return ("#");
  }
}

function getposOffset(overlay, offsettype){
var totaloffset=(offsettype=="left")? overlay.offsetLeft : overlay.offsetTop;
var parentEl=overlay.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}

function overlay(curobj, subobj){
if (document.getElementById){
var subobj=document.getElementById(subobj)
subobj.style.left=getposOffset(curobj, "left")+"px"
subobj.style.top=getposOffset(curobj, "top")+"px"
subobj.style.display="block"
return false
}
else
return true
}

function overlayclose(subobj){
document.getElementById(subobj).style.display="none"
}