var contentHeight = 800;
	var contentWidth  = 800;
	var lastWidthC =0;
	var lastHeightC =0;
	var netX = 0;
	var netY = 0;

	function CenterEverything()
	{
		if(lastWidthC == 0){lastWidthC = contentWidth; lastHeightC = contentHeight;}

		var newWidth;
		var newHeight;
		if(document.body && document.body.offsetWidth)//IE, W3C
		{
			newWidth = document.body.offsetWidth;
			newHeight = document.body.offsetHeight;
		}
		else if(window.innerWidth) //NN4
		{
			newWidth = window.innerWidth;
			newHeight = window.innerHeight;
		}
		else{ return; }//bail

		var leftOffset = (newWidth - lastWidthC) / 2;
		var topOffset = (newHeight - lastHeightC) / 2;
		leftOffset = ((leftOffset * -1) > netX)?(0-netX):(leftOffset);
		topOffset = ((topOffset * -1) > netY)?(0-netY):(topOffset);
		lastWidthC = (2*leftOffset)+lastWidthC;
		lastHeightC = (2 * topOffset) + lastHeightC;

		MoveAllLayersBy(leftOffset, topOffset);
	}


	function MoveAllLayersBy(  leftOffset,  topOffset )
	{
		netX += leftOffset;
		netY += topOffset;

		var collection = document.layers; //NS4
		if(collection == null){ collection = document.all;}	//IE4
		if((collection == null)&&(document.getElementsByTagName != null))
		{
			collection = document.getElementsByTagName("*"); //NS6, IE5, W3C
		}

		if(collection != null)
		{
			var i;
			for(i=0; i < collection.length; i++)
			{
				var lyr = collection[i];
				if(lyr.style != null)
				{  //IE, NS6, W3C
					if(lyr.tagName == "DIV")
					{
						lyr.style.left = parseInt(lyr.style.left) + leftOffset;
						lyr.style.top = parseInt(lyr.style.top) + topOffset;
					}
				}
				else if(lyr.moveBy)
				{ //NN4
					lyr.moveBy(leftOffset, topOffset);
				}
			}
		}
	}