js：原生方法：定位同级对象的下一…

js：原生方法：定位同级对象的下一个最近的对象

eg:(ctrl为js的一个普通对象)

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var<wbr><span><wbr></wbr></span><code style="border-top-left-radius: 0px !important; border-top-right-radius: 0px !important; border-bottom-right-radius: 0px !important; border-bottom-left-radius: 0px !important; background-image: none !important; border: 0px !important; float: none !important; left: auto !important; line-height: 1.1em !important; margin: 0px !important; outline: 0px !important; overflow: visible !important; padding: 0px !important; position: static !important; right: auto !important; text-align: left !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-family: Consolas, 'Bitstream Vera sans Mono', 'Courier new', Courier, monospace !important; font-weight: normal !important; font-style: normal !important; font-size: 1em !important; min-height: auto !important; color: black !important; background-position: initial initial !important; background-repeat: initial initial !important;">oSearchBtn = ctrl.nextSibling;</code></wbr>