不幸又发生在四川了 没办法 只能祈求这种天灾人祸少发生些！又有一些人为了出名捐钱捐物了 如果是出自真心最好 不然就老实呆着 不要帮倒忙 比如开着跑车到那里去送水 以为旅游呢 反而阻碍交通 
yii开发的网站 如果用了布局继承 那么要灰显整个网站 只需要把主布局 改动下就好：
html {
filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
-webkit-filter: grayscale(100%);
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
}
img {
_filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=0);
-webkit-filter: grayscale(100%);
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
}
上面这段代码拷贝到<head>… </head> 之间 ;
另一种方法， 扩展一个CWebApplication：
class MyWebApplication extends CWebApplication
{
/**
* The post-filter for controller actions.
* This method is invoked after the currently requested controller action and all its filters
* are executed. You may override this method with logic that needs to be done
* after all controller actions.
* @param CController $controller the controller
* @param CAction $action the action
*/
public function afterControllerAction($controller, $action)
{
}
/**
* The pre-filter for controller actions.
* This method is invoked before the currently requested controller action and all its filters
* are executed. You may override this method with logic that needs to be done
* before all controller actions.
* @param CController $controller the controller
* @param CAction $action the action
* @return boolean whether the action should be executed.
*/
public function beforeControllerAction($controller,$action)
{
$forYaAn = <<<GRAY_PAGE
html {
filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
-webkit-filter: grayscale(100%);
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
}
img {
_filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=0);
-webkit-filter: grayscale(100%);
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
}
GRAY_PAGE;
$this->clientScript->registerCss('for_yaAn',$forYaAn);
if (!empty($this->user->loginRequiredAjaxResponse)){
Yii::app()->clientScript->registerScript('ajaxLoginRequired', '
//jQuery("body").ajaxComplete(
jQuery("body").ajaxSuccess(
function(event, request, options) {
if (request.responseText == "'.Yii::app()->components['user']->loginRequiredAjaxResponse.'") {
window.location.href = "'. $this->createUrl(UserHelper::getLoginUrl()) .'";
}
}
);
');
}
return parent::beforeControllerAction($controller,$action);
}
}
然后再主入口文件index.php 修改创建应用程序的地方：
$app = Yii::createApplication('MyWebApplication', $config);
css 样式来自：to gray, for Ya’An, Si Chuan earthquake