Javascript 如何编辑SharePoint 2010函数变量

我想问一下如何编辑SharePoint 2010功能？从源代码中，我可以看到一个自动生成的函数：

<script type="text/javascript">
function _initTRAWebPartWPQ3()
{var toolbarData = new Object();toolbarData['ToolbarData'] = .....;
toolbarData['CurrentUserInfo']=[{id:'172',loginName....;
}

function _initTRAWebPartWPQ3(x){
    toolbarData['CurrentUserInfo'] = x;
    };

ExecuteOrDelayUntilScriptLoaded(_initTRAWebPartWPQ3('Stewe'), "sp.ribbon.js");