//var x = document.getElementsByTagName("object");
//for(var i=0;i<x.length-1;i++){x[i].style.display = "none"};	

//if (navigator.appName != 'Microsoft Internet Explorer') {//Not IE
//	document.getElementById("bg_overlay").style.height = window.innerHeight + window.scrollMaxY + 23 + "px"; //23 = altura bilboard
//} 
//else {//IE
	document.getElementById("bg_overlay").style.height = document.body.scrollHeight + 23 + "px";	
//}	
					
function hideOverlay() {
		document.getElementById("img_overlay").style.display = "none";
		document.getElementById("bg_overlay").style.display = "none";
		for(var i=0;i<x.length;i++){x[i].style.display = "block"};
}