dw_scrollObjs = {
};

dw_scrollObj.speed = 100;

function dw_scrollObj(wnId, lyrId, cntId)
{
	this.id = wnId;
	dw_scrollObjs[this.id] = this;
	this.animString = "dw_scrollObjs." + this.id;
	this.load(lyrId, cntId);
};

dw_scrollObj.loadLayer = function(wnId, id, cntId)
{
	if(dw_scrollObjs[wnId])
		dw_scrollObjs[wnId].load(id, cntId);
};

dw_scrollObj.prototype.load = function(lyrId, cntId)
{
	if(!document.getElementById)
		return;

	var wndo, lyr;
	if(this.lyrId)
	{
		lyr = document.getElementById(this.lyrId);
		lyr.style.visibility = "hidden";
	}

	lyr = document.getElementById(lyrId);
	wndo = document.getElementById(this.id);
	lyr.style.top = this.y = 0;
	lyr.style.left = this.x = 0;
	this.maxY = (lyr.offsetHeight - wndo.offsetHeight > 0) ? lyr.offsetHeight - wndo.offsetHeight : 0;
	this.wd = cntId ? document.getElementById(cntId).offsetWidth : lyr.offsetWidth;
	this.maxX = (this.wd - wndo.offsetWidth > 0) ? this.wd - wndo.offsetWidth : 0;
	this.lyrId = lyrId;
	lyr.style.visibility = "visible";
	this.on_load();
	this.ready = true;
};

dw_scrollObj.prototype.on_load = function()
{
};

dw_scrollObj.prototype.shiftTo = function(lyr, x, y)
{
	if(!lyr.style)
		return;

	lyr.style.left = (this.x = x) + "px";
	lyr.style.top = (this.y = y) + "px";
};

dw_scrollObj.GeckoTableBugFix = function()
{
	var ua = navigator.userAgent;
	if(ua.indexOf("Gecko") > -1 && ua.indexOf("Firefox") == -1 && ua.indexOf("Safari") == -1 && ua.indexOf("Konqueror") == -1)
	{
		dw_scrollObj.hold = [];
		for(var i = 0; arguments[i]; i++)
		{
			if(dw_scrollObjs[arguments[i]])
			{
				var wndo = document.getElementById(arguments[i]);
				var holderId = wndo.parentNode.id;
				var holder = document.getElementById(holderId);
				document.body.appendChild(holder.removeChild(wndo));
				wndo.style.zIndex = 1000;
				var pos = getPageOffsets(holder);
				wndo.style.left = pos.x + "px";
				wndo.style.top = pos.y + "px";
				dw_scrollObj.hold[i] = [arguments[i], holderId];
			}
		}

		window.addEventListener("resize", dw_scrollObj.rePositionGecko, true)
	}
};

dw_scrollObj.rePositionGecko = function()
{
	if(dw_scrollObj.hold)
	{
		for(var i = 0; dw_scrollObj.hold[i]; i++)
		{
			var wndo = document.getElementById(dw_scrollObj.hold[i][0]);
			var holder = document.getElementById(dw_scrollObj.hold[i][1]);
			var pos = getPageOffsets(holder);
			wndo.style.left = pos.x + "px";
			wndo.style.top = pos.y + "px";
		}
	}
};

function getPageOffsets(el)
{
	var left = el.offsetLeft;
	var top = el.offsetTop;
	if(el.offsetParent && el.offsetParent.clientLeft || el.offsetParent.clientTop)
	{
		left += el.offsetParent.clientLeft;
		top += el.offsetParent.clientTop;
	}

	while(el = el.offsetParent)
	{
		left += el.offsetLeft;
		top += el.offsetTop;
	}
	x = left;
	y = top;
	return
	{
		x,y;
	}
};