rem: new_value += whitespace[0]; this.element.value = new_value + value; 
add: newValue += whitespace[0]; this.element.value = newValue + value; 
context:   updateElement: function(value) {    var last_token_pos = this.findLastToken();    if (last_token_pos != -1) {      var new_value = this.element.value.substr(0, last_token_pos + 1);      var whitespace = this.element.value.substr(last_token_pos + 1).match(/^\s+/);      if (whitespace)        new_value += whitespace[0];      this.element.value = new_value + value;    } else {      this.element.value = value;    }   },
meta: 1868	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1868/3f913f897829fb026ef98df2d57f8da94ee5339d/controls.js/buggy/public/javascripts/controls.js