function send_comment(){
	//$('#comment_form').submit();
}
$(document).ready(function(){

	var options = { 
		//target:        '#upddata',   // target element(s) to be updated with server response 
		beforeSubmit:  showRequest,  // pre-submit callback 
		success:       showResponse  // post-submit callback 
		// other available options: 
		//url:       url         // override for form's 'action' attribute 
		//type:      type        // 'get' or 'post', override for form's 'method' attribute 
		//dataType:  null        // 'xml', 'script', or 'json' (expected server response type) 
		//clearForm: true        // clear all form fields after successful submit 
		//resetForm: true        // reset the form after successful submit 
	 
		// $.ajax options can be used here too, for example: 
		//timeout:   3000 
	    }; 
	    // bind to the form's submit event 
		$('#comment_form').submit(function() { 
			$(this).ajaxSubmit(options); 
			return false;
		}); 
	    
	    // pre-submit callback 
		function showRequest(formData, jqForm, options) { 
		    var queryString = $.param(formData); 
		    return true; 
		} 
		 
		// post-submit callback 
		function showResponse(responseText, statusText)  { 
			if(responseText != 'Одно из полей пустое' && responseText != ''){
				$('#author_field').val('');
				$('#body_textarea').val('');
			}
			alert(responseText);
		 } 
});