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_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 MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}


function checkBrowser(){
	this.ver=navigator.appVersion
	this.dom=document.getElementById?1:0
	this.ie5=((this.ver.indexOf("MSIE")>-1) && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
	return this
}

function oculta(i)
{
MM_showHideLayers('capa'+i,'','hide')

}

function muestra(i)
{
MM_showHideLayers('capa'+i,'','show')
}

function coloca_capas(ncapas,anchopantalla,anchoanterior,anchominimo)
{
precarga()
var bw=new checkBrowser()
var nom,capa,xcapa1,xcapa,correccion,anchoaplicar
for(x=1;x<=ncapas;x++)
	{
	nom='capa'+x
	if(bw.ns4) {capa=document.layers[nom]}
	else if(bw.ie4) {capa=document.all[nom].style}
		 else if(bw.ie5||bw.ns5){capa=document.getElementById(nom).style}
	xcapa1=capa.left
	xcapa=(bw.ns4)? parseInt(xcapa1):parseInt(xcapa1.substr(0,xcapa1.lastIndexOf("p")))
	anchoaplicar=Math.max(anchoanterior,anchominimo)
	correccion=(anchoaplicar/2)-xcapa
	anchoaplicar=Math.max(anchopantalla,anchominimo)
	capa.left=(anchoaplicar/2)-correccion
	}
}
function openWindow(uri,title,features){
	window.open(uri,title,features);
}

function precarga()
	{
	MM_preloadImages('/imagenes/menuestacionesv.gif','/imagenes/menudistribucionv.gif','/imagenes/menulineasviajerosv.gif','/imagenes/menufitosanitariosv.gif',
					'/imagenes/menusemillasv.gif','/imagenes/menumaquinariaagricolav.gif','/imagenes/menuserviciosempresasv.gif','/imagenes/menujardinerov.gif',
					'/imagenes/menuproductosv.gif','/imagenes/menucontacteconnosotrosv.gif','/imagenes/menurincondelcuriosov.gif','/imagenes/menulinksdeinteresv.gif',
					'/imagenes/menunutricionvegetalv.gif','/imagenes/menucalidadv.gif','/imagenes/menucatalogov.gif','/imagenes/menuactividadv.gif','/imagenes/menusituacionactualv.gif',
					'/imagenes/menuantecedentesv.gif');
							
	}