<!--

//-----------------------------------------------------------------------------
// http://www.texsoft.it/index.php?c=software&m=sw.js.htmltooltip&l=it
//-----------------------------------------------------------------------------
function xstooltip_findPosX(obj) {
  var curleft = 0;
  if (obj.offsetParent) 
	{
	while (obj.offsetParent) 
        	{
        	curleft += obj.offsetLeft
		obj = obj.offsetParent;
		}
	}
   else if (obj.x)
        curleft += obj.x;
  return curleft;
}
function xstooltip_findPosY(obj) {
    var curtop = 0;
    if (obj.offsetParent) 
	{
	while (obj.offsetParent) 
		{
		curtop += obj.offsetTop
		obj = obj.offsetParent;
		}
	}
  else if (obj.y)
	curtop += obj.y;
 return curtop;
}
function xstooltip_show(tooltipId, parentId, posX, posY) {
	it = document.getElementById(tooltipId);

	if ((it.style.top == ''  || it.style.top == 0) && 
	    (it.style.left == '' || it.style.left == 0))
		{
 // need to fixate default size (MSIE problem)
		it.style.width = it.offsetWidth + 'px';
		it.style.height = it.offsetHeight + 'px';

		img = document.getElementById(parentId); 

// if tooltip is too wide, shift left to be within parent 
		if (posX + it.offsetWidth > img.offsetWidth) posX = img.offsetWidth - it.offsetWidth;
		if (posX < 0 ) posX = 0; 

		x = xstooltip_findPosX(img) + posX;
		y = xstooltip_findPosY(img) + posY;

		it.style.top = y + 'px';
		it.style.left = x + 'px';
		}
	it.style.visibility = 'visible'; 
}
function xstooltip_hide(id) {
	it = document.getElementById(id); 
	it.style.visibility = 'hidden'; 
}
//-----------------------------------------------------------------------------

// -->