function NTSize(width, height)
{
	this.width=width;
	this.hegiht=height;
}
NTSize.prototype.toString=function ()
{
	return "("+this.width+", "+this.height+")";
}
function NTPoint(x, y)
{
	this.x=x;
	this.y=y;
}
NTPoint.prototype.toString=function ()
{
	return "("+this.x+", "+this.y+")";
}
function NTArea(x, y, w, h)
{
	this.Size=new NTSize(w, h);
	this.Position=new NTPoint(x, y);
}
NTArea.prototype.toString=function ()
{
	return "("+this.Position.x+", "+this.Position.y+", "+this.Size.width+", "+this.Size.height+")";
}