var mouseX = 0;
var mouseY = 0;
if (document.layers) 
document.captureEvents(Event.MOUSEMOVE);
document.onmousemove = getCursor; 
function getCursor(e) {
if (document.all) {
mouseX = event.clientX + document.body.scrollLeft;
mouseY = event.clientY + document.body.scrollTop;
}
else
{
  if (document.getElementById) {
  mouseX = e.pageX;
  mouseY = e.pageY;
  }
}
}

function livello_vis(idel, widthimg, heightimg){
var rpx, rpy, x1, y1, vx, vy;

x1 = (widthimg / 2);
x1 = (heightimg / 2);
  if (document.all){
  vx = mouseX  + document.body.scrollLeft - x1;
  vy = document.body.scrollTop + 100;
  /*
  if (vy < 0){
  vy = 0;
  }
  if (vx < 0){
  vx = 0;
  }  
  */
  document.getElementById(idel).style.pixelLeft = vx;
  document.getElementById(idel).style.pixelTop = vy;
  document.getElementById(idel).style.visibility = "visible";

  }
  
  else
  {
    if (document.layers){
    //bx = (window.innerWidth / 2) - 350;
    document.idel.left = mouseX  - x1;
	 document.idel.top = mousey - y1;
    }
    else
    {
      if(document.getElementById) {
	  vx = mouseX  + document.body.scrollLeft - x1;
      vy = document.body.scrollTop + 100;
      /*
      if (vy < 0){
      vy = 0;
      }
      if (vx < 0){
      vx = 0;
      }  
      */
      document.getElementById(idel).style.left = vx;
	  document.getElementById(idel).style.top = vy;
	  document.getElementById(idel).style.visibility = "visible";
      }
    }
  }
}

function visibile_ev2(idel){
var rpx, rpy, x1, y1, vx, vy;
  if (document.all){
  vx = 200;
  vy = document.body.scrollTop + 30;
  document.getElementById(idel).style.pixelLeft = vx;
  document.getElementById(idel).style.pixelTop = vy;
  document.getElementById(idel).style.visibility = "visible";

  }
  
  else
  {
    if (document.layers){
    //bx = (window.innerWidth / 2) - 350;
    rpx = (mouseX / window.innerWidth);
	rpy = (mouseY / window.innerHeight);
	x1 = (widthimg * rpx);
	y1 = (heightimg * rpy);
    document.idel.left = mouseX  - x1;
	document.idel.top = mousey - y1;
    }
    else
    {
      if(document.getElementById) {
	  vx = 200;
      vy = document.body.scrollTop + 30;
      if (vy < 0){
      vy = 0;
      }
      if (vx < 0){
      vx = 0;
      }  
      document.getElementById(idel).style.left = vx;
	  document.getElementById(idel).style.top = vy;
	  document.getElementById(idel).style.visibility = "visible";
      }
    }
  }
}

function livello_no_vis(idel){
document.getElementById(idel).style.visibility = "hidden";
cc(idel, 'livello_img.php?id=vuoto.gif');
}

function vismes(idmes){
document.getElementById("contau").style.visibility = "hidden";
document.getElementById("conten").style.visibility = "hidden";
document.getElementById("conttr").style.visibility = "hidden";
document.getElementById(idmes).style.visibility = "visible";
document.getElementById(idmes).style.left = mouseX - 280;
document.getElementById(idmes).style.top = mouseY - 280;
}