title: preventing script reloading in asp.net
body: <p>Is there any way to prevent loading the same script in asp.net?
  Before I load any javascript file I want to check if that has been already loaded or not.
  I am using </p>
  
  <blockquote>
    <p>Page.ClientScript.RegisterClientScriptInclude</p>
  </blockquote>
  
  <p>to load javascript files</p>