function getXmlHttpRequestObject(){
	try{
		object_ = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try{
			object_= new ActiveXObject("Microsoft.XMLHTTP");
		}catch(E){
			  object_= false;
		} 
	}
	if (!object_ && typeof XMLHttpRequest!='undefined'){
		object_ = new XMLHttpRequest();
	}
	return object_;
}

function trim(s){
	var strAux = s;
	strAux = strAux.replace(/\s+/gi, ' '); //sacar espacios repetidos dejando solo uno
	strAux = strAux.replace(/^\s+|\s+$/gi, ''); //sacar espacios blanco principio y final
	return strAux;
}

function calcular_edad(fecha){
    hoy=new Date();
    var array_fecha = fecha.split("/");
    if (array_fecha.length!=3)
       return false;

    var ano;
    ano = parseInt(array_fecha[2]);
    if (isNaN(ano))
       return false;

    var mes;
    mes = parseInt(array_fecha[1]);
    if (isNaN(mes))
       return false;

    var dia;
    dia = parseInt(array_fecha[0]);
    if (isNaN(dia))
       return false;

    edad=hoy.getFullYear()- ano - 1; //-1 porque no se si ha cumplido aņos ya este aņo

    if (hoy.getMonth() + 1 - mes < 0)
       return edad;
    if (hoy.getMonth() + 1 - mes > 0)
       return edad + 1;

    if (hoy.getUTCDate() - dia >= 0)
       return edad + 1;

    return edad;
}

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];}}
}

/*cookies*/

/* get, set, and delete cookies */
function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}
	
function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+"="+escape( value ) +
		( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) + //expires.toGMTString()
		( ( path ) ? ";path=" + path : "" ) +
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}
	
function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + "=" +
			( ( path ) ? ";path=" + path : "") +
			( ( domain ) ? ";domain=" + domain : "" ) +
			";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}