if(window.attachEvent)
{
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
         }
      }
   }
window.attachEvent("onload", correctPNG);
}
//---> comprobar si existe ventana
function test_open(nombrehtml)
{
	if (typeof win_ampliada != 'undefined')
	{
	win_ampliada.close();
	}
	win_ampliada= window.open(nombrehtml+'.html','ampliada','width=548,height=416');
	win_ampliada.moveTo(250,250)
}
// ---> FIN: Comprobar si existe ventana
//-----> mostrara ocultar combos --->

var sub_anterior=new Array();
sub_anterior[1]=0;
//sub_anterior[2]=0;
//sub_anterior[3]=0;
//sub_anterior[4]=0;

function vis_subcat(campo,muestra,id_subanterior)
{
	//window.alert("muestra:"+muestra+"\ncampo: "+campo+"\nid_subanterior:"+id_subanterior);
	if (muestra!=0)
	{	
		if (sub_anterior[id_subanterior]!=0)
			{
				document.getElementById(campo+sub_anterior[id_subanterior]).style.display='none';
				//sub_anterior=0;//coloca a cero la marca?
			}
			else
			{
			document.getElementById('vis_'+id_subanterior).style.display='none';

			}
		//document.getElementById(campo+muestra).options[0].selected= true;		
		document.getElementById(campo+muestra).style.display='';
		sub_anterior[id_subanterior]=muestra;
	}
	else
	{
		if (sub_anterior[id_subanterior]!=0)
		{
			document.getElementById(campo+sub_anterior[id_subanterior]).style.display='none';
		}
		document.getElementById('vis_'+id_subanterior).style.display='';
		sub_anterior[id_subanterior]=0;
		
	}

}
//----> fin:  mostrara ocultar combos --->
/*****
Dream
*****/
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];}
}