/*//var ns4up = (document.layers) ? 1 : 0;  // browser sniffer
//var ie4up = (document.all) ? 1 : 0;

if (top.Frame_Up && top.Frame_Centro && top.Frame_Menu_b) {
  //Dimensioni documento
  if (ns4up || ie5ns6up) {
  	xdoc_height1 = top.Frame_Up.innerHeight;
	xdoc_height2 = top.Frame_Centro.innerHeight;
	xdoc_height3 = top.Frame_Menu_b.innerHeight;
  	} 
  else if (ie4up) {
   	xdoc_height1 = top.Frame_Up.clientHeight;
	xdoc_height2 = top.Frame_Centro.clientHeight;
	xdoc_height3 = top.Frame_Menu_b.clientHeight;
  	}
  else {
   	xdoc_height1=120;
    	xdoc_height2=60;
    	xdoc_height3=420;
  	}

  //No browser got
  if (!xdoc_height1) {
	xdoc_height1=120;
	xdoc_height2=60;
	xdoc_height3=420;
	}

  xdoc_height = eval("xdoc_height1+xdoc_height2+xdoc_height3");
  }

*/