Increase SharePoint Execution Timeout

<system.web> 

    <compilation batch="false" batchTimeout="600" maxBatchSize="10000" maxBatchGeneratedFileSize="10000" /> 

    <httpHandlers> 

      <add verb="*" path="*.aspx" type="System.Web.UI.PageHandlerFactory, System.Web, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> 

    </httpHandlers> 

    <customErrors mode="On" /> 

<httpRuntime executionTimeout="360" /> 

    <globalization fileEncoding="utf-8" /> 

  </system.web>