/*
Created by Randy Bennet http://home.thezone.net/~rbennett/utility/javahead.htm
Featured on JavaScript Kit (http://javascriptkit.com)
For this and over 400+ free scripts, visit http://javascriptkit.com
*/
offsetUtente = 0;

function setVariables() {
	if (document.layers) {
		v=".top=";
		dS="window.document.";
		sD="";
		y="window.pageYOffset";
	}
	else if (document.all){
		v=".pixelTop=";
		dS="";
		sD=".style";
		y="document.body.scrollTop";
	}
	else if (document.getElementById){
		y="window.pageYOffset";
	}
}

function moveBanner(object, yy) {
	if (document.getElementById) {
		document.getElementById(object).style.top=yy + "px";
	}
	else
		eval(dS+object+sD+v+yy+"px")
}

function checkLocation() {
	yy = eval(y);
	yy = Math.max(0, yy - 160 - offsetUtente);
	moveBanner("divBanner1", yy);
	moveBanner("divBanner2", yy);
	setTimeout("checkLocation()", 10);
}