//--------------------------------------------------------------------------------------------------------//
// dom-drag.js                                                                                            //
// 09.25.2001                                                                                             //
// www.youngpup.net                                                                                       //
// Script featured on Dynamic Drive (http://www.dynamicdrive.com) 12.08.2005                              //
//--------------------------------------------------------------------------------------------------------//
var theHandle  = '';
var theRoot    = '';
var theWrapper = '';

var Drag = {

  obj : null,

  init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
  {
    o.onmousedown  = Drag.start;

    o.hmode      = bSwapHorzRef ? false : true ;
    o.vmode      = bSwapVertRef ? false : true ;

    o.root = oRoot && oRoot != null ? oRoot : o ;

    if (o.hmode  && isNaN(parseInt(o.root.style.left  ))) o.root.style.left   = "0px";
    if (o.vmode  && isNaN(parseInt(o.root.style.top   ))) o.root.style.top    = "0px";
    if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right  = "0px";
    if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";

    o.minX  = typeof minX != 'undefined' ? minX : null;
    o.minY  = typeof minY != 'undefined' ? minY : null;
    o.maxX  = typeof maxX != 'undefined' ? maxX : null;
    o.maxY  = typeof maxY != 'undefined' ? maxY : null;

    o.xMapper = fXMapper ? fXMapper : null;
    o.yMapper = fYMapper ? fYMapper : null;

    o.root.onDragStart  = new Function();
    o.root.onDragEnd  = new Function();
    o.root.onDrag    = new Function();
  },

  start : function(e)
  {
    var o = Drag.obj = this;
    e = Drag.fixE(e);
    var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
    var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
    o.root.onDragStart(x, y);

    o.lastMouseX  = e.clientX;
    o.lastMouseY  = e.clientY;

    if (o.hmode) {
      if (o.minX != null)  o.minMouseX  = e.clientX - x + o.minX;
      if (o.maxX != null)  o.maxMouseX  = o.minMouseX + o.maxX - o.minX;
    } else {
      if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
      if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
    }

    if (o.vmode) {
      if (o.minY != null)  o.minMouseY  = e.clientY - y + o.minY;
      if (o.maxY != null)  o.maxMouseY  = o.minMouseY + o.maxY - o.minY;
    } else {
      if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
      if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
    }

    document.onmousemove  = Drag.drag;
    document.onmouseup    = Drag.end;

    return false;
  },

  drag : function(e)
  {
    e = Drag.fixE(e);
    var o = Drag.obj;

    var ey  = e.clientY;
    var ex  = e.clientX;
    var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
    var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
    var nx, ny;

    if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
    if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
    if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
    if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);

    nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
    ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));

    if (o.xMapper)    nx = o.xMapper(y)
    else if (o.yMapper)  ny = o.yMapper(x)

    Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
    Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
    Drag.obj.lastMouseX  = ex;
    Drag.obj.lastMouseY  = ey;

    Drag.obj.root.onDrag(nx, ny);
    return false;
  },

  end : function()
  {
    document.onmousemove = null;
    document.onmouseup   = null;
    Drag.obj.root.onDragEnd(  parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]), 
                  parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top" : "bottom"]));
    Drag.obj = null;
  },

  fixE : function(e)
  {
    if (typeof e == 'undefined') e = window.event;
    if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
    if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
    return e;
  }
};

function ajax_function(recordIDArg) {
var xmlHttp;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject('Msxml2.XMLHTTP');
    }
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject('Microsoft.XMLHTTP');
      }
    catch (e)
      {
      alert('Your browser does not support AJAX!');
      return false;
      }
    }
  }
  xmlHttp.onreadystatechange=function()
    {
    if(xmlHttp.readyState==4) {
      setValue(xmlHttp.responseText);
      }
    }
  URL = 'popup.php?RECORD_ID=' + recordIDArg;
  xmlHttp.open('GET',URL,true);
  xmlHttp.send(null);
  }

function setValue(htmlArg) {
 var lightbox           = document.getElementById('lightbox');
 var left_val           = (screen.width / 2 ) - 370 
 left_val               = left_val + 'px';
 lightbox.innerHTML     = htmlArg;
 lightbox.style.display = 'inline';
 setDrag();
 theRoot.style.left     = left_val;
 }

function setDrag() {
theHandle  = document.getElementById('handle');
theRoot    = document.getElementById('root');
theWrapper = document.getElementById('wrapper');
Drag.init(theHandle, theRoot);

//var text = '';
//for ( i in theWrapper.style ) {
//  text += i + ': ';
//  text += theWrapper.style.i + '\n';
//  }


//alert(theWrapper.style.innerHTML);
//theWrapper.style.visibility = 'hidden';
//alert(theWrapper.style.left);
//alert(text);
}

function closeBox() {
  theRoot.style.visibility = 'hidden';
  }