window.size = function()
{
	var w = 0;
	var h = 0;

	//IE
	if(!window.innerWidth)
	{
		//strict mode
		if(!(document.documentElement.clientWidth == 0))
		{
			w = document.documentElement.clientWidth;
			h = document.documentElement.clientHeight;
		}
		//quirks mode
		else
		{
			w = document.body.clientWidth;
			h = document.body.clientHeight;
		}
	}
	//w3c
	else
	{
		w = window.innerWidth;
		h = window.innerHeight;
	}
	return {width:w,height:h};
}


window.center = function()
{
	var hWnd = (arguments[0] != null) ? arguments[0] : {width:0,height:0};

	var _x = 0;
	var _y = 0;
	var offsetX = 0;
	var offsetY = 0;

	//IE
	if(!window.pageYOffset)
	{
		//strict mode
		if(!(document.documentElement.scrollTop == 0))
		{
			offsetY = document.documentElement.scrollTop;
			offsetX = document.documentElement.scrollLeft;
		}
		//quirks mode
		else
		{
			offsetY = document.body.scrollTop;
			offsetX = document.body.scrollLeft;
		}
	}
	//w3c
	else
	{
		offsetX = window.pageXOffset;
		offsetY = window.pageYOffset;
	}

	_x = ((this.size().width-hWnd.width)/2)+offsetX;
	_y = ((this.size().height-hWnd.height)/2)+offsetY;

	return{x:_x,y:_y};
}


function attesa(point)
{


	var div = document.createElement("div");
	div.style.zIndex = "100";
	div.style.opacity = (50 / 100);
	div.style.MozOpacity = (50 / 100);
	div.style.KhtmlOpacity = (50 / 100);
	div.style.filter = "alpha(opacity=" + 50 + ")";
	div.style.position = "absolute";
	div.style.top = "0";
	div.style.left = "0";
	div.style.width = screen.width;
	div.style.height = 6000;
	div.style.background = "#000000";
	document.body.appendChild(div);


	if (document.getElementById) 
	{ 
		var div2 = document.getElementById("wait");
		div2.style.top = point.y + "px";
    		div2.style.left = point.x + "px";
    		div2.style.display = "block";
	}
}