// JavaScript Document

var ie=document.all;
var nn6=document.getElementById&&!document.all;
var isdrag=false;
var x,y;
var dobj;

function movemouse(e)
{
  if (isdrag)
  {
    dobj.style.left = nn6 ? tx + e.clientX - x : tx + event.clientX - x;
    dobj.style.top  = nn6 ? ty + e.clientY - y : ty + event.clientY - y;
    return false;
  }
}

function selectmouse(e)
{
  var fobj       = nn6 ? e.target : event.srcElement;
  var topelement = nn6 ? "HTML" : "BODY";
  while (fobj.tagName != topelement && fobj.className != "dragme")
  {
    fobj = nn6 ? fobj.parentNode : fobj.parentElement;
  }
  if (fobj.className=="dragme")
  {
    isdrag = true;
    dobj = fobj;
    tx = parseInt(dobj.style.left+0,10);
    ty = parseInt(dobj.style.top+0,10);
    x = nn6 ? e.clientX : event.clientX;
    y = nn6 ? e.clientY : event.clientY;
    document.onmousemove=movemouse;
    return false;
  }
}
document.onmousedown=selectmouse;
document.onmouseup=new Function("isdrag=false");


var dragresize = new DragResize('dragresize',
 { minWidth: 50, minHeight: 50, minLeft: 20, minTop: 20, maxLeft: 600, maxTop: 600 });

// Optional settings/properties of the DragResize object are:
//  enabled: Toggle whether the object is active.
//  handles[]: An array of drag handles to use (see the .JS file).
//  minWidth, minHeight: Minimum size to which elements are resized (in pixels).
//  minLeft, maxLeft, minTop, maxTop: Bounding box (in pixels).

// Next, you must define two functions, isElement and isHandle. These are passed
// a given DOM element, and must "return true" if the element in question is a
// draggable element or draggable handle. Here, I'm checking for the CSS classname
// of the elements, but you have have any combination of conditions you like:

dragresize.isElement = function(elm)
{
 if (elm.className && elm.className.indexOf('drsElement') > -1) return true;
};
dragresize.isHandle = function(elm)
{
 if (elm.className && elm.className.indexOf('drsMoveHandle') > -1) return true;
};

// You can define optional functions that are called as elements are dragged/resized.
// Some are passed true if the source event was a resize, or false if it's a drag.
// The focus/blur events are called as handles are added/removed from an object,
// and the others are called as users drag, move and release the object's handles.
// You might use these to examine the properties of the DragResize object to sync
// other page elements, etc.

dragresize.ondragfocus = function() { };
dragresize.ondragstart = function(isResize) { };
dragresize.ondragmove = function(isResize) { };
dragresize.ondragend = function(isResize) { };
dragresize.ondragblur = function() { };

// Finally, you must apply() your DragResize object to a DOM node; all children of this
// node will then be made draggable. Here, I'm applying to the entire document.
dragresize.apply(document);