function omnipotent($field, $value, $fieldinfo) {
		extract($fieldinfo);
		$form_text = str_replace('{FIELD_VALUE}',$value,$form_text);
		$form_text = str_replace('{MODEL_ID}',$this->model_id,$form_text);
		preg_match_all('/{FUNC\((.*)\)}/',$form_text,$_match);
		foreach($_match[1] as $key=>$match_func) {
			$string = '';
			$params = explode('~~',$match_func);
			$user_func = $params[0];
			$string = $user_func($params[1]);
			$form_text = str_replace($_match[0][$key],$string,$form_text);
		}
		$id  = $this->id ? $this->id : 0;
		$form_text = str_replace('{ID}',$id,$form_text);
		$error_tips = $this->fields[$field]['error_tips'];
		$this->formValidator[$field] = "function(value){";
        if($min_length>0){
            $this->formValidator[$field] .="if (value.length < $min_length) {
                return '至少得".$min_length."个字符';
            }";
        }
        if($max_length>0){
            $this->formValidator[$field] .="if (value.length > $max_length) {
                    return '不得超过".$max_length."个字符';
                }";
        }
        if($pattern!=''){
            $this->formValidator[$field] .="
                    var pattern = $pattern;
                    if (pattern.test(value)) {
                        return '格式不正确';
                    }";
        }
        $this->formValidator[$field] .="}";
		return $form_text;
	}