function countCheckedValues(ctrl){
	count = 0; 
	if (ctrl.length != undefined){
		for(i=0;i<ctrl.length; i++){
			if (ctrl[i].checked) count++; 
		}
	}else{
		if (ctrl.checked){
			count = 1; 
		} 
	}
	return count; 
}

// comprobar si un string es numerico
function IsNumeric(sText){
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

   for (i = 0; i < sText.length && IsNumber == true; i++) { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}

// comprobar si un string es numerico
function IsNumericFormat(sText){
	var ValidChars = "0123456789.,";
	var IsNumber=true;
	var Char;
	
	for (i = 0; i < sText.length && IsNumber == true; i++) { 
		Char = sText.charAt(i); 
		if (ValidChars.indexOf(Char) == -1) 
		{
			IsNumber = false;
		}
	}
	return IsNumber;
}

// Subir o bajar un elemento dentro de un select
function Ordena(pSelectBox, pOffset){
    var targetOption = pSelectBox.selectedIndex + pOffset;
    var valor;
    var texto;
    var aux;
    
    if(pSelectBox.options.length == 0){
    	alert("No existen elementos en el listado");
    }else if(pSelectBox.selectedIndex == -1){
    	alert("Debe seleccionar un elemento");
    }else if( targetOption > -1 && targetOption < pSelectBox.options.length){
		var indActual = pSelectBox.selectedIndex;	
		var _oact = pSelectBox.options[indActual];
		var _odst = pSelectBox.options[targetOption];
		var oact = new Option(_oact.text, _oact.value, "", "");
		var odst = new Option(_odst.text, _odst.value, "", "");
		oact.setAttribute("name",_oact.getAttribute("name"));
		odst.setAttribute("name",_odst.getAttribute("name"));
		pSelectBox.options[indActual] = odst;
		pSelectBox.options[targetOption] = oact;
		pSelectBox.selectedIndex = targetOption;
    }
}

// mueve un elemento entre dos select
function Mueve(origen, destino){
	
	if (origen.value == undefined || origen.value == null  || origen.value == ""){
		alert("Debe seleccionar un elemento a mover");
		return;
	}

	destino.options.add(new Option(origen.options[origen.selectedIndex].text, origen.value));
	origen.remove(origen.selectedIndex);
}

// Trim: espacios, tabuladores (\t) y saltos de l?nea (\r\n)
String.prototype.trim = function(){
	return this.replace(/^[\s\t\r\n]+|[\s\t\r\n]+$/g,'')
}

function pause(milliseconds){
	var now = new Date();
	var exitTime = now.getTime() + milliseconds;
		
	while(true){
		now = new Date();
		if(now.getTime() > exitTime) return;
	}
}

function isValidFile(fileName){
	var invalidFiles = new Array("ascx", "asp", "aspx", "bat", "cfc", 
		"cfm", "cgi", "com", "dll", "exe", "jsp", "jspf", "lasso", "perl",  
		"phtml", "php", "php3", "php5", "pl", "py", "reg");
	
	try{
		if(fileName!=null && fileName!=""){
			var i;
			var name = fileName.toString().toLowerCase();
			
			for (i=0; i<invalidFiles.length; i++) {
				if(name.indexOf("." + invalidFiles[i]) != -1){
			    	return false;
			    }
			} 
			return true;
		}else{
			return false;
		}
	}catch(err){
		return false;
	}
}

var formatosDeImagenPermitidos = "\nLos formatos de imagen permitidos son (jpg | gif | jpeg | png)";

function isValidImage(fileName){
	try{
		var isValidFle = isValidFile(fileName);
	
		if(isValidFle){
				var i;
				var name = fileName.toString().toLowerCase();
				var validImages = new Array("jpg", "gif", "jpeg", "png");
				
				for (i=0; i<validImages.length; i++) {
					if(name.indexOf("." + validImages[i]) != -1){
				    	return true;
				    }
				} 
				return false;
		}else{
			return false;
		}
	}catch(err){
		return false;
	}
}

var formatosFlowPlayerPermitidos = "\nLos formatos de video permitidos son (flv | mp4 )";

function isValid4FlowPlayer(fileName){
	try{
		var isValidFle = isValidFile(fileName);
	
		if(isValidFle){
				var i;
				var name = fileName.toString().toLowerCase();
				var validImages = new Array("flv", "mp4");
				
				for (i=0; i<validImages.length; i++) {
					if(name.indexOf("." + validImages[i]) != -1){
				    	return true;
				    }
				} 
				return false;
		}else{
			return false;
		}
	}catch(err){
		return false;
	}
}

var navigatorUserAgent = navigator.userAgent.toLowerCase();

function isIENavigator(){
	return navigatorUserAgent.indexOf("msie")!=-1;
}

function isIE7Navigator(){
	return navigatorUserAgent.indexOf("msie 7")!=-1;
}

function isGeckoNavigator(){
	return navigatorUserAgent.indexOf("gecko/")!=-1;
}

function isSafariNavigator(){
	return navigatorUserAgent.indexOf("safari")!=-1;
}

function isOperaNavigator(){
	return navigatorUserAgent.indexOf("opera")!=-1;
}

function getEditorValue( instanceName ){  
  // Get the editor instance that we want to interact with.
  var oEditor = FCKeditorAPI.GetInstance( instanceName ) ;
  // Get the editor contents as XHTML.
  return oEditor.GetXHTML( false ) ;  // "true" means you want it formatted.
}

function validarEmail(email){
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)){
			return (true);
	} else {
			return (false);
	}
}

function validarNIF(nif){
	if (/^(X|x|\d{1})\d{7}\D{1}$/.test(nif)){
			return (true);
	} else {
			return (false);
	}
}

function validarFecha(fecha){
	if (/^(3[01]|0?[1-9]|[12]\d)\/(0?[1-9]|1[012])\/\d{4}$/.test(fecha)){
			return (true);
	} else {
			return (false);
	}
}