function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function muestra(capa) {
	document.getElementById(capa).style.display='block';
}

function oculta(capa) {
	document.getElementById(capa).style.display='none';
}

var altoVentana;
var altoTotal;
var alto;
var altura;

function muestragaleria(url) {
	if (window.innerHeight){
   		//navegadores basados en mozilla
   		alto = window.innerHeight;
	}else{
		//Navegadores basados en IExplorer, es que no tengo innerheight
		alto = document.documentElement.clientHeight;
   }
	altoTotal=document.getElementById('pagina').offsetHeight;
	if(altoTotal>alto){
		altura=altoTotal;
	}else{
		altura=alto;
	}
	document.getElementById('vistagaleria').style.height=altura+'px';
	document.getElementById('galeria').style.height=altura+'px';
	ajax_HTTP_GET(url, 'intgaleria');
	document.getElementById('vistagaleria').style.display='block';
	document.getElementById('formconsulta').style.display='none';
}

function ocultagaleria() {
	document.getElementById('intgaleria').innerHTML="";
	document.getElementById('vistagaleria').style.display='none';
	document.getElementById('formconsulta').style.display='block';
}

function objetoAjax(){
	var httpRequest;

	if(window.XMLHttpRequest) {
		httpRequest = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		try {
			httpRequest = new ActiveXObject("MSXML2.XMLHTTP");
		} catch (e) {
			try {
				httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if(!httpRequest) {
		alert("No ha sido posible crear una instancia de XMLHttpRequest");
	}

	return httpRequest;
}

function ajax_HTTP_GET(url, capa) {
	resultado = document.getElementById(capa);

	ajax = objetoAjax();
	ajax.open("GET", url);
	ajax.onreadystatechange=function() {
		if(ajax.readyState == 4) {
			resultado.innerHTML = ajax.responseText;
		}
	}

	ajax.send(null)
}