function sendComment (form, container, content_type, content_id)
{
	form = $(form);
	var params = Form.serialize (form);
	var myAjax = new Ajax.Request(
      form.action,
      {
				method: 'post', 
				postBody: params,
				onLoading: function () { $('loading').style.display = 'block'},
				onComplete: returnComment.bindAsEventListener (this, container, content_type, content_id)
			}
	);
}

function returnComment (e, container, content_type, content_id)
{
	$(container).innerHTML = e.responseText;
	new Ajax.Updater(
		'comments',
		BASE_URL + '/comments/show_all/' + content_type + '/' + content_id
		)
}
function openWindow (url, width, height, scrollbars){
	window.open(url, "_blank", "toolbar=no,menubar=no,directories=no,status=no,resizable=no,location=no,scrollbars=" + scrollbars + ",height=" + height + ",width=" + width + ",left=20,top=20")
}

function login (form, container)
{
	form = $(form);
	var params = Form.serialize (form);
	var myAjax = new Ajax.Updater (
			container,
      form.action,
      {
				method: 'post', 
				postBody: params,
				onLoading: function () { $('loading').style.display = 'block'},
				onComplete: function () { $('loading').style.display = 'none'}
			}
	);
}

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 oculta(id){
 document.getElementById('uno').style.display = "none";
 document.getElementById('dos').style.display = "none";
 document.getElementById('tres').style.display = "none";
 document.getElementById('cuatro').style.display = "none";
 muestra(id);
}

function muestra(id){
 document.getElementById(id).style.display = "block";
}