// JavaScript Document
var play = 1;
	
var maxTop = window.pageYOffset;
var maxBottom = window.pageYOffset;
var maxLeft = window.pageXOffset;
var maxRight = window.pageXOffset;

var terminei = 0;

var speed = 15;

var orientY = 1;
var orientX = 1;	

if( typeof( window.innerWidth ) == 'number' ) {
	//Non-IE
	maxLeft = window.innerWidth-30;
	maxBottom = window.innerHeight;
} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
	//IE 6+ in 'standards compliant mode'
	maxLeft = document.documentElement.clientWidth-30;
	maxBottom = document.documentElement.clientHeight ;
} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
	//IE 4 compatible
	maxLeft = document.body.clientWidth-30;
	maxBottom = document.body.clientHeight;
}
/* TEM ALGO ESTRANHO COM A FUNÇÃO, NÃO FUNCIONA DIREITO NO IE... */
function fnMotionVert(banner, orient){
	var bannerTop = parseInt(banner.style.top.substr(0, banner.style.top.length - 2));
	var bannerBottom = parseInt(banner.style.top.substr(0, banner.style.top.length - 2)) + parseInt(banner.style.height.substr(0, banner.style.height.length - 2));
	
	if(bannerBottom<maxBottom && bannerTop>0){
		banner.style.top = String(parseInt(banner.style.top.substr(0, banner.style.top.length - 2)) + orient) + "px";
	} else {
		if(1==orientY){
			banner.style.top = String(parseInt(banner.style.top.substr(0, banner.style.top.length - 2)) - 1) + "px";
			orientY = -1;
		} else {
			banner.style.top = String(parseInt(banner.style.top.substr(0, banner.style.top.length - 2)) + 1) + "px";
			orientY = 1;
		}
	}
}

function fnMotionHor(banner, orient){
	var bannerLeft = parseInt(banner.style.left.substr(0, banner.style.left.length - 2));
	var bannerRight = parseInt(banner.style.left.substr(0, banner.style.left.length - 2)) + parseInt(banner.style.width.substr(0, banner.style.width.length - 2));
			
	if(bannerRight<maxLeft && bannerLeft>0){
		banner.style.left = String(parseInt(banner.style.left.substr(0, banner.style.left.length - 2)) + orient) + "px";
	} else {
		if(1==orientX){
			banner.style.left = String(parseInt(banner.style.left.substr(0, banner.style.left.length - 2)) - 1) + "px";
			orientX = -1;
		} else {
			banner.style.left = String(parseInt(banner.style.left.substr(0, banner.style.left.length - 2)) + 1) + "px";
			orientX = 1;
		}
	}
}

function fnBannerMotion(id){
	var banner = document.getElementById(id);
	if("hidden"==banner.style.visibility) banner.style.visibility = "visible";
	fnMotionVert(banner, orientY);
	fnMotionHor(banner, orientX);
	if(1==play) setTimeout("fnReload('"+id+"')", speed);
}

function fnReload(id){
	fnBannerMotion("bannerCar");
}

function fnOverBanner(obj){
	if(!terminei){
		obj.style.cursor="pointer";
		obj.style.cursor="hand";
		play=0;
	}
}

function fnOutBanner(obj){
	if(!terminei){
		obj.style.cursor="auto";
		play=1;
		fnBannerMotion("bannerCar");
	}
}

function fnFecharBanner(id){
	play=0;
	document.getElementById(id).style.visibility='hidden';
	terminei=1;
}