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_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_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 popup(url,ancho,alto,id,extras){
	if(navigator.userAgent.indexOf("Mac")>0){ancho=ancho+15;alto=alto+15;}
	var left = (screen.availWidth-ancho)/2;
	var top = (screen.availHeight-alto)/2;
	if(extras!=""){extras=","+extras;};
	eval("window.open('"+url+"','"+id+"','width="+ancho+",height="+alto+",left="+left+",top="+top+",screenX="+left+",screenY="+top+extras+"')");
}

// funciones para cookies
function ReadCookie (name) {
	var namearg = name + "=";
	var nlen = namearg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + nlen;
		if (document.cookie.substring(i, j) == namearg) {
			var endpos = document.cookie.indexOf (";", j);
			if (endpos == -1) endpos = document.cookie.length;
			return unescape(document.cookie.substring(j, endpos));
		}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function WriteCookie (name, value) {
	var expdate=new Date();
	// expire cookie in 10 years by default
	expdate.setTime(expdate.getTime()+10*365*24*60*60*1000);
	document.cookie = name + "=" + escape (value) + "; expires=" + expdate.toGMTString();
}

// plegado de secciones del menu
function toggle_nav(id){
	obj = MM_findObj(id);
	if(typeof(obj.style)!='undefined'){
		if(obj.style.display!='none'){
			obj.style.display = 'none';
			WriteCookie(id.toString(),'off')
		}else{
			obj.style.display = 'block';
			WriteCookie(id.toString(),'on')
		}
	}
}


function toggle_2(id,boton){
	obj = MM_findObj(id);
    obj3 = MM_findObj(boton);
		if(obj.style.display!='none'){
			obj.style.display = 'none';
            obj3.value='Responder';
		}else{
			obj.style.display = 'block';
            obj3.value='Cerrar';            
	}
}

function toggle_contactos(id,titulo,boton){
	obj = MM_findObj(id);
    obj2 = MM_findObj(titulo);
    obj3 = MM_findObj(boton);
		if(obj.style.display!='none'){
			obj.style.display = 'none';
			obj2.style.backgroundColor = '#ffffff';
            obj3.value='+';
		}else{
			obj.style.display = 'block';
			obj2.style.backgroundColor = '#cccccc';
            obj3.value='-';            
	}
}

//Contar Caracteres en Textarea
function TrackCount(fieldObj,countFieldName,restFieldName,maxChars)
{
  var countField = eval("fieldObj.form."+countFieldName);
  var restFieldName = eval("fieldObj.form."+restFieldName);
  var diff = maxChars - fieldObj.value.length;
  var diff2 =  fieldObj.value.length;  

  if (diff < 0)
  {
    fieldObj.value = fieldObj.value.substring(0,maxChars);
    diff = maxChars - fieldObj.value.length;
  }
  countField.value = diff;
  restFieldName.value = diff2;
}

function LimitText(fieldObj,maxChars)
{
  var result = true;
  if (fieldObj.value.length >= maxChars)
    result = false;
  
  if (window.event)
    window.event.returnValue = result;
  return result;
}