function hidediv(ident) {
elemento = document.getElementById(ident); 
if (elemento) { // DOM3 = IE5, NS6
elemento.style.visibility = 'hidden';
}
else {
if (elemento.layers) { // Netscape 4
elemento.visibility = 'hidden';
}
else { // IE 4
elemento.style.visibility = 'hidden';
}
}
}

function showdiv(ident) {
elemento = document.getElementById(ident);
if (elemento) { // DOM3 = IE5, NS6
elemento.style.visibility = 'visible';
}
else {
if (elemento.layers) { // Netscape 4
elemento.visibility = 'visible';
}
else { // IE 4
elemento.style.visibility = 'visible';
}
}
}
function mostrarfoto(cual){
     document.getElementById('pic2').innerHTML = '<img src="images/galeria/p'+cual+'.jpg" width="600" height="402" class="foto" />';
	 showdiv('foto');
}


<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//-->
function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=780,height=585,left = 420,top = 249');");
}