C# Embedded Javascript

private string script;
private string scriptFile = "~/js/SomeScript.js";

protected void Page_Load(Object sender, EventArgs e)
{
    //All Code-Behind Script
    Page.ClientScript.RegisterStartupScript(this.GetType, "ScriptName", new MyScript(12.79, 5, 85283, X7XG9m)).Script)
    //Load Pre-wrote script
    Page.ClientScript.RegisterScriptInclude(this.GetType, "ScriptName", scriptFile)
}

public class MyScript
{
    private string _script;
    public string Script
    {get {return _script;}}
    {private set = value;}}

    public MyScript(string price, string qty, string zip, string orderId)
    {
        sb = new StringBuilder();
        sb.Append("<script type='text/javascript'>");
        sb.Append(string.format("alert(\"{0}{1}{2}{3}\");", price, qty, zip, orderId);
        sb.Append("</script>)");
        script=sb.ToString();
    }
}