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 favoritos() {
	if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4) && (navigator.appVersion.indexOf("Win")!=-1)) {
		var url="http://www.hamacaonline.net";
		var title="HAMACA media & video art distribution from spain";
		window.external.addFavorite(url,title);
	}
	else {
		var msg = "Para añadir hamacaonline.net a los favoritos de tu navegador pulsa la combinación de teclas  (CTRL-D)";	
		alert(msg);
	}
}


function isNumber(str){
    var ValidChars = "0123456789";
    var IsNumber=true;
    var Char;
	IsNumber = (str.length > 0);
    for (i = 0; i < str.length && IsNumber == true; i++) 
    { 
        Char = str.charAt(i); 
        if (ValidChars.indexOf(Char) == -1) 
        {
        IsNumber = false;
        }
    }
    return IsNumber;   
}

var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(theday,themonth,theyear){
	var daysInMonth = DaysArray(12);
	var strMonth=themonth;
	var strDay=theday;
	var strYear=theyear;
	strYr=strYear;
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1);
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1);
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1);
	}
	month=parseInt(strMonth);
	day=parseInt(strDay);
	year=parseInt(strYr);
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return false;
	}
	if (strMonth.length<1 || month<1 || month>12){
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return false;
	}

	return true;
}

function isPresentDate(theday,themonth,theyear){
	//Comprobar que es una fecha mayor o igual que la fecha actual
	var today = new Date();
	var result = isFutureDate(theday,themonth,theyear);
	result = result || (isDate(theday,themonth,theyear) && today.getDate() == parseInt(theday) && today.getMonth() == parseInt(themonth)-1 && today.getFullYear() == theyear);
	return result;
}
function isFutureDate(theday,themonth,theyear){
	//Comprobar que es una fecha mayor
	var d1 = new Date(theyear, themonth-1, theday);
	var d2 = new Date();
	var milli_d1 = d1.getTime();
	var milli_d2 = d2.getTime();
	var diff = milli_d1 - milli_d2;
	var num_days = (((diff / 1000) / 60) / 60) / 24;
	return (isDate(theday,themonth,theyear) && num_days >= 0);

}

function compareDates(thedate1,thedate2){
	arrDate = thedate1.split("-");
	day1 = arrDate[0];	
	month1 = arrDate[1];	
	year1 = arrDate[2];	
	arrDate = thedate2.split("-");
	day2 = arrDate[0];	
	month2 = arrDate[1];	
	year2 = arrDate[2];	
	if (isDate(day1,month1,year1) && isDate(day2,month2,year2)){
		var d1 = new Date(year1, month1-1, day1);
		var d2 = new Date(year2, month2-1, day2);
		var milli_d1 = d1.getTime();
		var milli_d2 = d2.getTime();
		var diff = milli_d1 - milli_d2;
		var num_days = (((diff / 1000) / 60) / 60) / 24;
		if (num_days > 0) return 1;
		if (num_days == 0) return 0;
		if (num_days < 0) return -1;
	}
	return null;
}

function toggleShowHide(className) {
    var tds = document.getElementsByTagName("TD");
    for(var i = 0; i < tds.length; i++) {
        if(tds[i].className.indexOf(className) >= 0) {
            if(tds[i].style.display != "none") {
                tds[i].style.display = "none";
            } else {
                tds[i].style.display = "";
            }
        }
    }
   
    var ths = document.getElementsByTagName("TH");
    for(var i = 0; i < ths.length; i++) {
        if(ths[i].className.indexOf(className) >= 0) {
            if(ths[i].style.display != "none") {
                ths[i].style.display = "none";
            } else {
                ths[i].style.display = "";
            }
        }
    }
}

function toggle_it(itemID){
      // Toggle visibility between none and inline
      if ((document.getElementById(itemID).style.display == 'none'))
      {
        document.getElementById(itemID).style.display = 'inline';
      } else {
        document.getElementById(itemID).style.display = 'none';
      }
  } 
  
function LTrim(str)
{
   var whitespace = new String(" \t\n\r");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(0)) != -1) {

      var j=0, i = s.length;

      while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
         j++;

      s = s.substring(j, i);
   }
   return s;
}
function RTrim(str)
{
   var whitespace = new String(" \t\n\r");

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {

      var i = s.length - 1;       // Get length of string

      while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
         i--;
      s = s.substring(0, i+1);
   }

   return s;
}
function Trim(str)
{
   return RTrim(LTrim(str));
}
function isEmpty (str){
    return (Trim(str) == "");
}

function isLengthMoreThan(value,fieldLength){
	s = Trim(value);
	return(value.length >= fieldLength);
}

function isEmail(email){
    validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
    return (email.search(validRegExp) != -1);
}
function isPhone(phone)
{
	phone=Trim(phone);
	var patron = /(^([0-9\-\+\/\ ]){9,17})/
	return patron.test(phone);
}
function addedToCart(texto,showMessage){
	if (showMessage){
		alert(texto);
	}
}

function checkEmail (field, fieldDescription){
  if (!isEmail(field.value)) {
    alert(fieldDescription);
    field.focus();
    field.select();
	return false;
  }
  return true;
}

function checkEmpty(field, fieldDescription){
    if (isEmpty(field.value)){
        alert(fieldDescription);
        field.focus();
        field.select();
        return true;
    }
	return false;
}


function closeConnection(){
	if (flashProxy != null){
		flashProxy.call('closeConnection');
	}
}

var winFactura = null;

function verFactura(){	
	winFactura = window.open( "ver_factura.php" ,"_blank","height=600, width=800, menubar=no, resizable=no, scrollbars=yes, status=no, titlebar=no, toolbar=no",true);	
}
function cerrarFactura(){
	winFactura.close();
}

var winCondicionesLicencia = null;

function verCondicionesLicencia(){	
	winCondicionesLicencia = window.open( "ver_licencia_condiciones.php","_blank","height=600, width=800, menubar=no, resizable=no, scrollbars=yes, status=no, titlebar=no, toolbar=no",true);	
}
function cerrarCondicionesLicencia(){
	winCondicionesLicencia.close();
}

var winCredits = null;
function verCreditos(page){	
	winCredits = window.open( page,"_blank","height=764, width=318, menubar=no, resizable=no, scrollbars=yes, status=no, titlebar=no, toolbar=no",true);	
}