if(!document.getElementById){
  if(document.all)
  document.getElementById=function(){
    if(typeof document.all[arguments[0]]!="undefined")
    return document.all[arguments[0]]
    else
    return null
  }
  else if(document.layers)
  document.getElementById=function(){
    if(typeof document[arguments[0]]!="undefined")
    return document[arguments[0]]
    else
    return null
  }
}
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 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 agregar(){ 
   if ((navigator.appName=="Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=4)) { 
      var url="http://www.cristaldance.com/"; 
      var titulo=" Cristal Dance"; 
      window.external.AddFavorite(url,titulo); 
   } 
   else { 
      if(navigator.appName == "Netscape") 
         alert ("Pulsa Crtl+D para añadir esta página a tus favoritos."); 
   } 
} 

function ismaxlength(obj){
var mlength=obj.getAttribute? parseInt(obj.getAttribute("spmaxlength")) : ""
if (obj.getAttribute && obj.value.length>mlength)
obj.value=obj.value.substring(0,mlength)
}

function tooLong(obj,ext){
var mlength=obj.getAttribute? parseInt(obj.getAttribute("spmaxlength")) : ""
if (obj.getAttribute && obj.value.length>mlength)
	alert('Sólo se permiten '+mlength+' caracteres como máximo '+ext+'.');
}
function open_client(adr,adr2)
{
	var fulladr = adr + "@" + adr2
	location.href = "mailto:" + fulladr 
	
}
function escribir_email(adr,adr2)
{
	document.write(adr+'@'+adr2);
}
function getx(ev){
	var px;
	if (!document.all){
       event = ev;
       px = ev.pageX;
    }else{
       px = event.clientX +document.body.scrollLeft;
    }	
	return px;
}
function gety(ev){
	var py;
	if (!document.all){
       event = ev;
       py = ev.pageY;
    }else{
       py = event.clientY +document.body.scrollTop;
    }	
	return py;
}
var posrefx=0,posrefy=0;
function mostrarfoto2(ev,fot,w,h){
	var px, py;
	px=getx(ev);
	py=gety(ev);
	posrefx=px;
	posrefy=py;
	document.zoomfoto.src='../imagenes/'+fot;	
	document.zoomfoto.width=w;
	document.zoomfoto.height=h;	
	document.getElementById('fotoperfil').style.width=w;
	document.getElementById('fotoperfil').style.height=h;
	document.getElementById('fotoperfil').style.left=px-w-50;
	document.getElementById('fotoperfil').style.top=py-h;
	document.getElementById('fotoperfil').style.visibility="visible";	
	document.body.onmousemove=cerrarfoto2;
}
function cerrarfoto2(ev){
	var px, py;
	px=getx(ev);
	py=gety(ev);
	if((Math.abs(posrefx-px)+Math.abs(posrefy-py))>2){
		document.getElementById('fotoperfil').style.visibility='hidden';
		document.body.onmousemove=null;
	}	
}
/*   name - name of the cookie
   value - value of the cookie
   [expires] - expiration date of the cookie
     (defaults to end of current session)
   [path] - path for which the cookie is valid
     (defaults to path of calling document)
   [domain] - domain for which the cookie is valid
     (defaults to domain of calling document)
   [secure] - Boolean value indicating if the cookie transmission requires
     a secure transmission
   * an argument defaults when it is assigned null as a placeholder
   * a null placeholder is not required for trailing omitted arguments */
function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}
/*  name - name of the desired cookie
  return string containing value of specified cookie or null
  if cookie does not exist*/
function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

/*   name - name of the cookie
   [path] - path of the cookie (must be same as path used to create cookie)
   [domain] - domain of the cookie (must be same as domain used to
     create cookie)
   path and domain default if assigned null or omitted if no explicit
     argument proceeds  */
function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

setCookie("tt","ch");

function checkcookie(){
	if(getCookie("tt")!="ch"){
		var men="No tienes habilitadas las coookies en tu navegador, por lo que la página no funcionará correctamente.";
		document.getElementById("regi").innerHTML='<br><table width="30%" border="1" cellpadding="3" cellspacing="0" bordercolor="#000000" bgcolor="#FFFFFF" align="center" style="border-collapse:collapse;"><tr><td align="left" valign="top" bgcolor="#F0EE9C" style="font-size:8pt;color:#000000;" nowrap>&nbsp; '+men+' &nbsp;</td></tr></table>';
		return false;	
	}else{
		return true;
	}
}

// date - any instance of the Date object
// * hand all instances of the Date object to this function for "repairs"
function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}