Client.fs

namespace Website

module Client =
    open IntelliFactory.WebSharper
    open IntelliFactory.WebSharper.Html

    [<JavaScript>]
    let SayHello () =
        JavaScript.Alert("HELLO!")

    [<JavaScript>]
    let MakeHelloDiv () =
        SayHello ()
        Div [ Text "HELLO THERE" ]

module Controls =
    open IntelliFactory.WebSharper

    type HelloControl() =
        inherit Web.Control()
        [<JavaScript>]
        override this.Body = Client.MakeHelloDiv() :> _

Website.dll.js

(function()
{
 var Global=this,Runtime=this.IntelliFactory.Runtime,Website,Client,WebSharper,Html,Default,List,alert;
 Runtime.Define(Global,{
  Website:{
   Client:{
    MakeHelloDiv:function()
    {
     Client.SayHello();
     return Default.Div(List.ofArray([Default.Text("HELLO THERE")]));
    },
    SayHello:function()
    {
     return alert("HELLO!");
    }
   },
   Controls:{
    HelloControl:Runtime.Class({
     get_Body:function()
     {
      return Client.MakeHelloDiv();
     }
    })
   }
  }
 });
 Runtime.OnInit(function()
 {
  Website=Runtime.Safe(Global.Website);
  Client=Runtime.Safe(Website.Client);
  WebSharper=Runtime.Safe(Global.IntelliFactory.WebSharper);
  Html=Runtime.Safe(WebSharper.Html);
  Default=Runtime.Safe(Html.Default);
  List=Runtime.Safe(WebSharper.List);
  return alert=Runtime.Safe(Global.alert);
 });
 Runtime.OnLoad(function()
 {
 });
}());

WebSite.dll.min.js

(function(){var $$=this,$=this.IntelliFactory.Runtime,a,b,c,d,e,f,g;$.Define($$,{Website:{Client:{MakeHelloDiv:function(){b.SayHello();return e.Div(f.ofArray([e.Text("HELLO THERE")]));},SayHello:function(){return g("HELLO!");}},Controls:{HelloControl:$.Class({get_Body:function(){return b.MakeHelloDiv();}})}}});$.OnInit(function(){a=$.Safe($$.Website);b=$.Safe(a.Client);c=$.Safe($$.IntelliFactory.WebSharper);d=$.Safe(c.Html);e=$.Safe(d.Default);f=$.Safe(c.List);return g=$.Safe($$.alert);});$.OnLoad(function(){});}());