var xmlHttp

function setBg(inThis)
{
 this.style.backgroundColor="#fcc";
}

function setAirCraft(str,posit)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="aircraftjax.php"
url=url+"?serial="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)

//moveLayerToMouseLoc("apDiv1",0,0);
 document.getElementById("acOnion").style.visibility = "visible";
 document.getElementById("acBody").style.visibility = "visible";
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("acDisplay").innerHTML=xmlHttp.responseText; 
 } 
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}

function closeDiv()
{
 document.getElementById("acBody").style.visibility = "hidden";
  document.getElementById("acOnion").style.visibility = "hidden";
}

// * Dependencies * 

// this function requires the following snippets:

// JavaScript/readable_MM_functions/findObj

//

// Accepts a variable number of arguments, in triplets as follows:

// arg 1: simple name of a layer object, such as "Layer1"

// arg 2: ignored (for backward compatibility)

// arg 3: 'hide' or 'show'

// repeat...

//

// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');

function showHideLayers()

{ 

  var i, visStr, obj, args = showHideLayers.arguments;

  for (i=0; i<(args.length-2); i+=3)

  {

    if ((obj = findObj(args[i])) != null)

    {

      visStr = args[i+2];

      if (obj.style)

      {

        obj = obj.style;

        if(visStr == 'show') visStr = 'visible';

        else if(visStr == 'hide') visStr = 'hidden';

      }

      obj.visibility = visStr;

    }

  }

}

// * Dependencies * 

// this function requires the following snippets:

// JavaScript/readable_MM_functions/findObj

// JavaScript/readable_MM_functions/showHideLayers

// JavaScript/events/getMouseLoc

function moveLayerToMouseLoc(theLayer, offsetH, offsetV)

{

  var obj;

  if ((findObj(theLayer))!=null)

  {

    if (document.layers)  //NS

    {

      document.onMouseMove = getMouseLoc;

      obj = document.layers[theLayer];

      obj.left = mLoc.x +offsetH;

      obj.top  = mLoc.y +offsetV;

    }

    else if (document.all)//IE

    {

      getMouseLoc();

      obj = document.all[theLayer].style;

      obj.pixelLeft = mLoc.x +offsetH;

      obj.pixelTop  = mLoc.y +offsetV;

    }

    showHideLayers(theLayer,'','show');

  }

}

// get mouse location

function Point(x,y) {  this.x = x; this.y = y; }

mLoc = new Point(-500,-500);

function getMouseLoc(e)

{

  if(!document.all)  //NS

  {

    mLoc.x = e.pageX;

    mLoc.y = e.pageY;

  }

  else               //IE

  {

    mLoc.x = event.x + document.body.scrollLeft;

    mLoc.y = event.y + document.body.scrollTop;

  }

  return true;

}
// Example: obj = findObj("image1");

function findObj(theObj, theDoc)

{

  var p, i, foundObj;

  

  if(!theDoc) theDoc = document;

  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)

  {

    theDoc = parent.frames[theObj.substring(p+1)].document;

    theObj = theObj.substring(0,p);

  }

  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];

  for (i=0; !foundObj && i < theDoc.forms.length; i++) 

    foundObj = theDoc.forms[i][theObj];

  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 

    foundObj = findObj(theObj,theDoc.layers[i].document);

  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);

  

  return foundObj;

}

/* 

Example:

function test()

{

  if (document.layers) getMouseLoc;     //NS

  else if (document.all) getMouseLoc(); //IE

  alert(mouseLocation.x+","+mouseLocation.y);

}

in the BODY:

<a href="#" onmouseover="test()">test</a>

*/

function Point(x,y) {  this.x = x; this.y = y; }

mouseLocation = new Point(-500,-500);

function getMouseLoc(e)

{

  if(!document.all)  //NS

  {

    mouseLocation.x = e.pageX;

    mouseLocation.y = e.pageY;

  }

  else               //IE

  {

    mouseLocation.x = event.x + document.body.scrollLeft;

    mouseLocation.y = event.y + document.body.scrollTop;

  }

  return true;

}

//NS init:

if(document.layers){ document.captureEvents(Event.MOUSEMOVE); document.onMouseMove = getMouseLoc; }