function Aparecer(v){
	if(navigator.appName=="Microsoft Internet Explorer"){
		if (document.getElementById(v).style.visibility="hidden"){
			document.getElementById(v).style.left= document.body.scrollLeft;
			document.getElementById(v).style.top= document.body.scrollTop;
			document.getElementById(v).filters[0].Apply();
			document.getElementById(v).style.visibility="visible";
			document.getElementById(v).filters[0].Play();
		}	
	}
	if(navigator.appName=="Netscape"){
		if (document.getElementById(v).style.visibility="hidden"){
			document.getElementById(v).style.left= document.body.scrollLeft;
			document.getElementById(v).style.top= document.body.scrollTop;
			document.getElementById(v).style.visibility="visible";
		}		
	}	
}
function Desaparecer(v){
	if(navigator.appName=="Microsoft Internet Explorer"){
		if (document.getElementById(v).style.visibility="visible"){
			document.getElementById(v).filters[0].Apply();
			document.getElementById(v).style.visibility="hidden";
			document.getElementById(v).filters[0].Play();
		}
	}
	if(navigator.appName=="Netscape"){
		if (document.getElementById(v).style.visibility="visible"){
			document.getElementById(v).style.visibility="hidden";
		}		
	}
}