var current = "";
var note_clip_view = ""

function clip_note(image_reference)
{ if (note_clip_view !== "clip")
	{	note_clip_view = "clip"
		document.all.note_close_div.style.visibility = "visible"
		document.all.note.style.display = "block"
		document.all.note.style.top = DL_GetElementTop(image_reference)-84;
		document.all.note.style.left = DL_GetElementLeft(image_reference)-450;
	}
}

function close_note()
{ note_clip_view = "view";
	document.all.note_close_div.style.visibility = "hidden";
	document.all.note.style.display = "none";
}
		
function hide_note()
{ if(note_clip_view == "view")
	{ document.all.note.style.display = "none";
	}
}

function show_note(x, image_reference)
{ if (note_clip_view != "clip")
	{ if(note_clip_view_potential != "clip")
		{ note_clip_view = "view";
			document.all.note.style.display = "block";
			document.all.note.style.top = DL_GetElementTop(image_reference)-84;
			document.all.note.style.left = DL_GetElementLeft(image_reference)-450;
			document.all.note_itself.innerHTML = x; 
		}
	}
}

function show(name, reference, parameterTop, parameterLeft)
{ current = name;
  var tip = eval('document.all.' + name);
  
  if (tip)
  { tip.style.visibility = "visible";
    if(reference != "")
    { tip.style.top = DL_GetElementTop(reference) + parameterTop;
      tip.style.left = DL_GetElementLeft(reference) + parameterLeft;
    }
  }
}

function hide(name)
{ var tip = eval('document.all.' + name);
  if (tip)
  { tip.style.visibility = "hidden";
    current="";
  }
}

function DL_GetElementLeft(eElement)
{ var nLeftPos = eElement.offsetLeft;      
  var eParElement = eElement.offsetParent;
  
  while (eParElement != null)
  { nLeftPos += eParElement.offsetLeft;     
    eParElement = eParElement.offsetParent; 
  }
  return nLeftPos;                             
}

function DL_GetElementTop(eElement)
{ var nTopPos = eElement.offsetTop;
  var eParElement = eElement.offsetParent;
  
  while (eParElement != null)
  { nTopPos += eParElement.offsetTop;
    eParElement = eParElement.offsetParent;
  }
  return nTopPos;
}

function sendVote()
{ for (x=0; x < document.Survey.Quality.length; x++)
  { if (document.Survey.Quality[x].checked)
    { return true;
    }
  }
  alert("Please choose Quality of Analysis rating prior to submitting the form.");
  return false;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);


function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}


function isEmpty(textcontrol)
{ str = textcontrol.value
	
	for (i = 0; i < str.length; i++)
	{ chr = str.substring(i, i + 1);
		
		if (chr != ' ')
		{ return false;
		}
	}
	return true;
}