function lh(){

    this.checkForm = function()
	{
   	   var input = $(document.createElement('input'));
       input.attr("name","HiddedCaptchaField");
       input.attr("value",'secretKey');
       input.attr("type","hidden");
       input.attr("id","id_captcha_code");
       $('#commentform').prepend(input); 
                       
       document.comment_form.submit();
       
       return false;
	}  
}

var lhinst = new lh();