function replaceAmpersand(sString){
    if (sString != "") {
      sString = replaceString(sString, "&", "&");
    }
   return sString;
}


function replaceString(sString, sReplaceThis, sWithThis) { 
    if (sReplaceThis != "" && sReplaceThis != sWithThis) {
      var counter = 0;
      var start = 0;
      var before = "";
      var after = "";
      while (counter < sString.length) {
        start = sString.indexOf(sReplaceThis, counter);
        if (start == -1){
         break;
         } else {
           before = sString.substr(0, start);
           after = sString.substr(start + sReplaceThis.length, sString.length);
           sString = before + sWithThis + after;
           counter = before.length + sWithThis.length;
          }
        }
      }
   return sString;
}

function validarNumSecMer(min,max,texto) {
	error = false;
	arrayOfStrings = texto.split("|");
	numSeleccionados = arrayOfStrings.length -1;
	if (numSeleccionados < min || numSeleccionados > max) {
		error = true;
	}
	return error;
}