// JavaScript Document
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 or higher.
{
for(var i=0; i<document.images.length; i++)
{
var img = document.images[i]
var imgName = img.src.toUpperCase()
if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
{
var imgID = (img.id) ? "id='" + img.id + "' " : ""
var imgClass = (img.className) ? "class='" + img.className + "' " : ""
var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
var imgStyle = "display:inline-block;" + img.style.cssText
if (img.align == "left") imgStyle = "float:left;" + imgStyle
if (img.align == "right") imgStyle = "float:right;" + imgStyle
if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle 
var strNewHTML = "<span " + imgID + imgClass + imgTitle
+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
+ "(src=\'" + img.src + "\');\"></span>"
img.outerHTML = strNewHTML
i = i-1
}
}
}

function png_alpha() // correctly handle PNG transparency in Win IE 5.5 or higher.
{
window.attachEvent("onload", correctPNG);
}



function muestra_oculta(id){
if (document.getElementById){ //se obtiene el id
var el = document.getElementById(id); //se define la variable "el" igual a nuestro div
el.style.display = (el.style.display == 'none') ? 'block' : 'none'; //damos un atributo display:none que oculta el div
}
}

function expande_div(alto){
	
	
	div=document.getElementById('fade');
	if(alto >768){
	div.style.height='100%';
	div.style.width='100%';
	}else{
	div.style.height='610px';
	div.style.width='100%';
	}
	div2=document.getElementById('div_ajax');
	div2.style.visibility="visible";
}

 
function muestra_imagen(image){
		
	img=document.getElementById('img_muestra');
	img.src =image;
	div2=document.getElementById('div_ajax');
	div2.style.visibility="visible";
	
}

function muestra_acervo(image){
		
	img=document.getElementById('img_muestra');
	img.src =image;
	
}

function envia_formulario(form,accion,texto){
	document.getElementById('id_texto').value=texto;
	form.action=accion;
	form.submit();
}

function envia_formulario2(form,accion,texto,num){
	document.getElementById('id_texto').value=texto;
	document.getElementById('id_num').value=num;
	form.action=accion;
	form.submit();
}