Adding Javascript To Page If Page Not Secure

I'm trying to add some share this javascript in between the head tags of an asp.net page but only if the page is not secure (!Request.IsSecureConnection). How do I get the code in the head tags to check for secure connection and then write the javascript if not secure. I've tried using <% %> blocks and RegisterStartupScriptBlock and it's not working UPDATE: Was able to get it to work using this in the Page_Load

if(!Request.IsSecureConnection)
{
HtmlGenericControl Include = new HtmlGenericControl("script");
Include.Attributes.Add("type", "text/javascript");
Include.Attributes.Add("src", "http....");
this.Page.Header.Controls.Add(Include);
}