JS file from a master page

Credit to http://geekswithblogs.net/rachit/archive/2007/01/14/103608.aspx

Finally a method that works ...

In the master page Page_Load event

protected void Page_Load(object sender, EventArgs e)
{
HtmlGenericControl myJs = new HtmlGenericControl();
myJs.TagName = "script";
myJs.Attributes.Add("type", "text/javascript");
myJs.Attributes.Add("language", "javascript"); //don't need it usually but for cross browser.
myJs.Attributes.Add("src", ResolveUrl("../Script/fileIO.js"));
this.Page.Header.Controls.Add(myJs);

}

Now you can reference its functions in the master page markup and in the content page markup.