function MM_findObj(n, d)
    { 
     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 preloadImages()
    {
        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 swapImg()
    {
        var i,j=0,x,a=swapImg.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 swapImgRestore()
    {
      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 hide()
{
if (document.getElementById)
	{
	//layerb = document.getElementById('menu')
	layerb = document.getElementById('catalogo')
	layerb.src="catalogo.jpg"
	}
else if (document.layers)
	{
	document.layers["menu"].visibility = "hidden";
	}
else{
	document.all.menu.style.visibility = "hidden";
	}
}

function show()
{
if (document.getElementById)
	{
	//layerb = document.getElementById('menu')
	layerb = document.getElementById('catalogo')
	layerb.src="catalogo2.jpg"
	}
else if (document.layers)
	{
	document.layers["menu"].visibility = "visible";
	}
else{
	document.all.menu.style.visibility = "visible";
	}
}

function init() {
  if (!document.getElementById) return
  var imgOriginSrc;
  var imgTemp = new Array();
  var imgarr = document.getElementsByTagName('img');
  for (var i = 0; i < imgarr.length; i++) {
    if (imgarr[i].getAttribute('hsrc')) {
        imgTemp[i] = new Image();
        imgTemp[i].src = imgarr[i].getAttribute('hsrc');
        imgarr[i].onmouseover = function() {
            imgOriginSrc = this.getAttribute('src');
            this.setAttribute('src',this.getAttribute('hsrc'))
        }
        imgarr[i].onmouseout = function() {
            this.setAttribute('src',imgOriginSrc)
        }
    }
  }
}