根据可燃物的类型和燃烧特性，火灾分为A、B、C、D、E、F六类。 A类火灾：是指固体物质火灾，这种物质通常具有有机物质性质，一般在燃烧时能产生灼热的余烬，如木材、煤、棉、毛、麻、纸张等火灾，灭火可选用清水灭火
For example I took html from a designer which is given below. How can i add click event which shows a开发者_运维百科lertfrom GWT?
加载中,请稍侯......