/**
 * Checks if a given string is float or not
 *
 * @author sos
 * @param {String} val The string in question.
 */
  function isFloat(val) {
    if(!val || (typeof val != "string" || val.constructor != String)) {
      return(false);
    }
    var isNumber = !isNaN(new Number(val));
    if(isNumber) {
      if(val.indexOf('.') != -1) {
        return(true);
      } else {
        return(false);
      }
    } else {
      return(false);
    }
  }