Add JavaScript map to Html Header using VB.Net

In Page Load event

Dim scripttag = New HtmlGenericControl("script")

                scripttag.Attributes.Add("type", "text/javascript")

                scripttag.InnerHtml = "var controls="[{‘key1’:’value1’, ‘key2’:’value2’},    {="[{‘key1’:’value3’, ‘key2’:’value4’}]"

                Page.Header.Controls.Add(scripttag)