function editarImagenes(id,type) {
	var url = "editar-imagenes.php?id=" + id + "&type=" + type;
	var opciones = "status=no,toolbar=no,menubar=no,directories=no,resizable=no,scrollbars=no,width=500,height=600";
	window.open(url, "Edición de imagenes", opciones);
}

function trim(cadena)
{
	for(i=0; i<cadena.length; )
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(i+1, cadena.length);
		else
			break;
	}

	for(i=cadena.length-1; i>=0; i=cadena.length-1)
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(0,i);
		else
			break;
	}
	
	return cadena;
}

function limitChars(textarea, limit, infodiv) {
 	var text = textarea.value; 
 	var textlength = text.length;
	var info = document.getElementById(infodiv);

	if(textlength > limit)	{
		 info.innerHTML = '<span style="color:#FF0000">Ha llegado al m&aacute;ximo de ' + limit + '</span>';
		 textarea.value = text.substr(0,limit);
		 return false;
	 } else	{
		info.innerHTML = (limit - textlength) +' caracteres restantes.';
		return true;
	}
}

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;   
}

function isEmailAddress(value){ 
	var s = value;
	var filter=/^([0-9a-zA-Z]+[-._+&amp;])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/;
	if (s.length == 0 ) return true;
	if (filter.test(s)) {
		return true;
	} else {
		return false;
	}
}

function goToURL(url) {
	window.location = url;
}