var mouseX = 0;
var mouseY = 0;
var dnddndmouseX = 0;
var dnddndmouseY = 0;
var DnD=false;
var dndObj;
var dragStart;
var dnddndXdist;
var dnddndYdist;
var Xdist = 0;
var Ydist = 0;
var tmpCursor="";
var objIdToMove="";

var	ie=document.all ? true : false;

if (!ie) document.captureEvents(Event.MOUSEMOVE)
document.onmousemove = dndgetdndmouseXY;

function dndgetdndmouseXY(e) {
	try {
	  if (ie) { 
	    mouseX = event.clientX + document.body.scrollLeft
	    mouseY = event.clientY + document.body.scrollTop
	    dndmouseX = event.clientX + document.body.scrollLeft
	    dndmouseY = event.clientY + document.body.scrollTop
	  } else { 
	    mouseX = e.pageX
	    mouseY = e.pageY
	    dndmouseX = e.pageX
	    dndmouseY = e.pageY
	  }  
	  if (mouseX < 0){mouseX = 0}
	  if (mouseY < 0){mouseY = 0}  
	  if (dndmouseX < 0){dndmouseX = 0}
	  if (dndmouseY < 0){dndmouseY = 0}  
	  if (DnD) {
	  	  if (dndObj) {
	  	  	if (dragStart) {
	  	  		var pos=dndfindPos(dndObj);
	  	  		dndXdist=dndmouseX-pos[0];
				dndYdist=dndmouseY-pos[1];
				dragStart=false;
	  	  	}
		  	dndObj.style.top=(dndmouseY-dndYdist)+"px";
		  	dndObj.style.left=(dndmouseX-dndXdist)+"px";
		  	return false;
		  }
	  } else {
		  if (objIdToMove != "") {
			var obj=document.getElementById(objIdToMove);
			obj.style.left=(mouseX-Xdist)+"px";
			obj.style.top=(mouseY-Ydist)+"px";  
		  }
	  }
	} catch(e) {}
	return true
}

function dndfindPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}

function drag(id) {
	dragStart=true;
	dndObj=document.getElementById(id);
	DnD=true;
	return false;
}

function drop() {
	DnD=false;
	return false;
}

function moveBox(id) {
	var obj=document.getElementById(id);
	var pos=findPos(id);
	if (objIdToMove == "") {
		Xdist=mouseX-pos[0];
		Ydist=mouseY-pos[1];
		tmpCursor=obj.style.cursor;
		if (tmpCursor=="" || typeof(tmpCursor)=="undefined") tmpCursor="default";
		obj.style.cursor="move";
		objIdToMove=id;
	} else {
		objIdToMove="";
		obj.style.cursor=tmpCursor;
	} 
}

function stopMoveBox(obj) {
	obj.style.cursor=tmpCursor;
	Xdist = "undefined";
	Ydist = "undefined";
	tmpCursor="undefined";	
}