</span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'beforetoggle'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">) === </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">){
</span><span class="jsdoc-keyword">return</span><span class="jsdoc-syntax">;
}
</span><span class="jsdoc-keyword">if</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">this.fireEvent</span><span class="jsdoc-syntax">(</span><span class="jsdoc-string">'beforetoggle'</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">this</span><span class="jsdoc-syntax">) === </span><span class="jsdoc-keyword">false</span><span class="jsdoc-syntax">){
</span><span class="jsdoc-keyword">return</span><span class="jsdoc-syntax">;
}