var resetLeft;
var resetTop;

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 ;

		Drag.setCenter(o.root);

		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();
		o.root.onmousedown  = new Function();
		o.root.onmousedown  = Drag.setHighestZ;
	},

	setCenter : function(obj)
	{
		/*var objWidth;
		if (obj.width){
			objWidth = parseInt(obj.width);
		}else if(obj.style.width){
			objWidth = parseInt(obj.style.width);
		}else{
			objWidth = 0;
		}
		var html = document.getElementsByTagName('html');
		if (html[0].offsetWidth){
			obj.style.left = ((html[0].offsetWidth / 2) - (objWidth / 2)) + "px";
		}else if(window.innerWidth){
			obj.style.left = ((window.innerWidth / 2) - (objWidth / 2)) + "px";
		}else{
			obj.style.left = 100 + "px";
		}
		obj.style.top = 272 + "px";//272
		if (resetLeft == undefined){
			resetLeft = obj.style.left;
		}
		if (resetTop == undefined){
			resetTop = obj.style.top;
		}
		return false;*/
	},

	setHighestZ : function()
	{
		var highestZ = 0;
		var divArr = document.getElementsByTagName('div');
		for (var i=0; i < divArr.length; i++){
			if (divArr[i].style.zIndex > highestZ){
				highestZ = divArr[i].style.zIndex;
			}
		}
		this.style.zIndex = parseInt(highestZ) + 1;
		return false;
	},

	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 showDiv(id)
{
	/*var leftprop, topprop, screenX, screenY, cursorX, cursorY;
	
	height = 200;
	width = 200;
	
	
	if(navigator.appName == "Microsoft Internet Explorer")
	{
		screenY = document.body.offsetHeight;
		screenY =  window.screen.availHeight;
		screenX = window.screen.availWidth;
	}
	else
	{ 
		screenY = screen.height;
		screenX = screen.width;
		
		screenY = window.outerHeight;
		screenX = window.outerWidth;
		
		screenY = window.innerHeight;
		screenX = window.innerWidth;
	}*/
	
	
	/*ursorX = document.body.scrollLeft+event.x;
	cursorY = document.body.scrollTop+event.y;
	padAmtX = 10;
	padAmtY = 10;
	if((cursorY + height + padAmtY) > screenY) 
	{
		// make sizes a negative number to move left/up
		padAmtY = (-30) + (height * -1);
		// if up or to left, make 30 as padding amount
	}
	if((cursorX + width + padAmtX) > screenX)	
	{
		padAmtX = (-30) + (width * -1);	
		// if up or to left, make 30 as padding amount
	}
	if(navigator.appName == "Microsoft Internet Explorer") 
	{
		leftprop = cursorX + padAmtX;
		topprop = cursorY + padAmtY;
	}
	else 
	{
		leftprop = (cursorX - pageXOffset + padAmtX);
		topprop = (cursorY - pageYOffset + padAmtY);
	}*/
   
    
	/*var tempX = 0;
	var tempY = 0;

	if (true) { // grab the x-y pos.s if browser is IE
		tempX = event.clientX + document.body.scrollLeft;
		tempY = event.clientY + document.body.scrollTop;
	}
	else {  // grab the x-y pos.s if browser is NS
		tempX = e.pageX;
		tempY = e.pageY;
	}  
	if (tempX < 0){tempX = 0;}
	if (tempY < 0){tempY = 0;}  */
	
	if (document.body.scrollTop == 0)
	{
		if (window.pageYOffset)	
			ScrollTop = window.pageYOffset;	
		else	
			ScrollTop = (document.body.parentElement) ? document.body.parentElement.scrollTop : 0;	
	}
	
	
	if (document.body.scrollLeft == 0)
	{
		if (window.pageXOffset)	
			ScrollLeft = window.pageXOffset;	
		else	
			ScrollLeft = (document.body.parentElement) ? document.body.parentElement.scrollLeft : 0;	
	}

	
	
var divObj = document.getElementById(id)
	divObj.style.display = 'block';
	var s = 0;
	var highestZ = 0;
	var divArr = document.getElementsByTagName('div');
	for (var i=0; i < divArr.length; i++){
		if (divArr[i].style.zIndex > highestZ){
			highestZ = divArr[i].style.zIndex;
		}
		if (divArr[i].id != id && divArr[i].className == divObj.className && divArr[i].style.display != 'none' && divArr[i].style.display != ''){
			s++;
		}
	}
	divObj.style.top = (parseInt(divObj.style.top) + (s * 25)) + "px";
	divObj.style.left = (parseInt(divObj.style.left) + (s * 25)) + "px";
	//divObj.style.top = 10 + "px";
	//divObj.style.left = 10 + "px";
	
	divObj.style.zIndex = parseInt(highestZ) + 1;
}

function hideDiv(id){
	document.getElementById(id).style.display = 'none';
	//document.getElementById(id).style.left = resetLeft;
	//document.getElementById(id).style.top = resetTop;
}