Mouse Click focus Help

[Millhouse50]

I am having this problem where when I run my web application and then
click with the mouse on the first textbox on the page, my previous
button on my wizard control gets focus. Now I tried to set the focus to
the Next button but it isn't really working at all. I was wondering if
someone could help with this. Is this a mouse click event I have to
manipulate or what. All help is appreciated.
protected void Page_Load(object sender, EventArgs e)
{
Button btn =
(Button)Wizard2.FindControl("StartNavigationTempla teContainerID").FindControl("StartNextButton");
Button btn2 =
(Button)Wizard2.FindControl("StepNavigationTemplat eContainerID").FindControl("StepNextButton");
Page.SetFocus(btn);
Page.SetFocus(btn2);

if (Page.IsPostBack == true)
{
Page.SetFocus(btn);
Page.SetFocus(btn2);
}
}