my_status=2;

function mas_fotos()
	{
	if (my_status==1)
		{
		document.getElementById('set1').style.visibility='visible';
		document.getElementById('set1').style.display='';
		document.getElementById('set2').style.visibility='hidden';
		document.getElementById('set2').style.display='none';
		my_status=2;
		//window.alert('entra en true');
		}
		else
		{
		document.getElementById('set1').style.visibility='hidden';
		document.getElementById('set1').style.display='none';
		document.getElementById('set2').style.visibility='visible';
		document.getElementById('set2').style.display='';
		my_status=1;
		//window.alert('entra en false');
		}
	}
	
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 cambia_fondo(objeto,scr,classe)
{
//window.alert(objeto+'\n'+scr+'\n'+classe)

 var nodeObj = document.getElementById(objeto)
 
//window.alert(nodeObj.style.backgroundImage.scr) 
nodeObj.style.backgroundImage='url('+scr+')';

switch(classe)
	{
	case 'izq': nodeObj.style.backgroundPosition='left';
	case 'cen': nodeObj.style.backgroundPosition='center';
	case 'der': nodeObj.style.backgroundPosition='der';
	case 'sup': nodeObj.style.backgroundPosition='top';
	case 'med': nodeObj.style.backgroundPosition='center';
	case 'abj': nodeObj.style.backgroundPosition='bottom';
	default:  nodeObj.style.backgroundPosition='center';
	}

}