// JavaScript Document
function aparece(x) 
{
	document.getElementById(x).style.display = "block";
}
function some(x)
{
	document.getElementById(x).style.display = "none";
}
function aparece_div(x) 
{
	document.getElementById(x).width = "450px";
	document.getElementById(x).height = "700px";
}
function some_div(x)
{
	document.getElementById(x).width = "0";
	document.getElementById(x).height = "0";
}