Someone

  this.inPlaceEdit_Blur = function inPlaceEdit_Blur(){    var xval = this.value;    var re = new RegExp("(^\[0-9]{1,6}$)");    if((xval == "")){    }    else if(!xval.match(re)){      alert('Value must be numeric.');      return false;    }    var parentTD = this.parentNode;    parentTD.removeChild(this);    parentTD.innerHTML = xval;  };