// POSITION NAVI BLOCK ON SCROLLED PAGE
var y_pos_is = 0;
function position() {
	var x,y;
	if (self.pageYOffset) // all except Explorer
	{
		x = self.pageXOffset;
		y = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
		// Explorer 6 Strict
	{
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
	}
	else if (document.body) // all other Explorers
	{
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}
	
	yposition = y;
	deacc = 5;
	if (yposition > y_pos_is) {
		jump = yposition - y_pos_is;
		y_pos_is = y_pos_is+jump/deacc;

	}
	if (yposition < y_pos_is) {
		jump =  y_pos_is - yposition;
		y_pos_is = y_pos_is-jump/deacc;
		
	}
	document.getElementById("nbox").style.marginTop = Math.round(y_pos_is)+"px";
	document.getElementById("impbox").style.marginBottom = Math.round(y_pos_is*-1)+"px";
	window.setTimeout("position()",50);
}