function resolution() {
if ((screen.width <= 800) && (screen.height <= 600))
  return 1;
else if ((screen.width == 1024) && (screen.height == 768))
  return 2;
else
  return 3;
}

function scriviColonna(num) {
  r = resolution();
  if( r==1 || r==2 || r==3) { // r=1 annulla il controllo sulla risoluzione!!!
    if(num==1)
      document.write('<td width="145" bgcolor="#1B5A79"><img src="../img/share/spacer.gif" width="145" height="10"></td>')
    else if(num==3) 
      document.write('<td width="135" height="10"><img src="../img/share/spacer.gif" width="135" height="10"></td>');
    else if(num==5)
      document.write('<td width="99%" style="background:#BABABA url(../img/share/rcs_right.gif);">&nbsp;</td>');
  }
}

function scriviBck(base) {
  r = resolution();
  imStr = "BODY {"+
          "background: url("+base+"bck.gif);"+
          "}";
  document.write(imStr);
}
/*
var agt=navigator.userAgent.toLowerCase();
var appVer = navigator.appVersion.toLowerCase();
var iePos  = appVer.indexOf('msie');
var is_moz   = ((agt.indexOf('mozilla/5')!=-1) && (agt.indexOf('spoofer')==-1) &&
                    (agt.indexOf('compatible')==-1) && (agt.indexOf('opera')==-1)  &&
                    (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)     &&
                    (agt.indexOf('gecko/')!=-1) && 
                    ((navigator.vendor=="")||(navigator.vendor=="Mozilla")));
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)
                && (!(is_moz)));
var is_opera = (agt.indexOf("opera") != -1);                
var is_ie   = ((iePos!=-1) && (!is_opera));
*/