Public Class Web_Browser
    Public rolldownsize As Integer
    Public oldbordersize As Integer
    Public oldtitlebarheight As Integer
    Public justopened As Boolean = False
    Public needtorollback As Boolean = False
    Public minimumsizewidth As Integer = 696
    Public minimumsizeheight As Integer = 300

#Region "Template Code"

    Private Sub Template_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        justopened = True
        Me.Left = (Screen.PrimaryScreen.Bounds.Width - Me.Width) / 2
        Me.Top = (Screen.PrimaryScreen.Bounds.Height - Me.Height) / 2
        setupall()
        If ShiftOSDesktop.WebBrowserCorrupted Then Me.Close() : infobox.showinfo("The Plague.", Me.Name & "has been corrupted by The Plague.")

        ShiftOSDesktop.pnlpanelbuttonwebbrowser.SendToBack() 'CHANGE NAME
        ShiftOSDesktop.setuppanelbuttons()
        ShiftOSDesktop.setpanelbuttonappearnce(ShiftOSDesktop.pnlpanelbuttonwebbrowser, ShiftOSDesktop.tbwebbrowsericon, ShiftOSDesktop.tbwebbrowsertext, True) 'modify to proper name
        ShiftOSDesktop.programsopen = ShiftOSDesktop.programsopen + 1

        gohome()
        webwindowt1.BringToFront()
        webwindowt1.Dock = DockStyle.Fill
        updatetabsizes()
    End Sub

    Public Sub setupall()
        setuptitlebar()
        setupborders()
        setskin()
    End Sub

    Private Sub ShiftOSDesktop_keydown(sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
        'Make terminal appear
        If e.KeyCode = Keys.T AndAlso e.Control Then
            Terminal.Show()
            Terminal.Visible = True
            Terminal.BringToFront()
        End If

        'Movable Windows
        If ShiftOSDesktop.boughtmovablewindows = True Then
            If e.KeyCode = Keys.A AndAlso e.Control Then
                e.Handled = True
                Me.Location = New Point(Me.Location.X - ShiftOSDesktop.movablewindownumber, Me.Location.Y)
            End If
            If e.KeyCode = Keys.D AndAlso e.Control Then
                e.Handled = True
                Me.Location = New Point(Me.Location.X + ShiftOSDesktop.movablewindownumber, Me.Location.Y)
            End If
            If e.KeyCode = Keys.W AndAlso e.Control Then
                e.Handled = True
                Me.Location = New Point(Me.Location.X, Me.Location.Y - ShiftOSDesktop.movablewindownumber)
            End If
            If e.KeyCode = Keys.S AndAlso e.Control Then
                e.Handled = True
                Me.Location = New Point(Me.Location.X, Me.Location.Y + ShiftOSDesktop.movablewindownumber)
            End If
            ShiftOSDesktop.log = ShiftOSDesktop.log & My.Computer.Clock.LocalTime & " User moved " & Me.Name & " to " & Me.Location.ToString & " with " & e.KeyCode.ToString & Environment.NewLine
        End If
    End Sub

    Private Sub titlebar_MouseDown(sender As Object, e As MouseEventArgs) Handles titlebar.MouseDown, lbtitletext.MouseDown, pnlicon.MouseDown, pgtoplcorner.MouseDown, pgtoprcorner.MouseDown
        ' Handle Draggable Windows
        If ShiftOSDesktop.boughtdraggablewindows = True Then
            If e.Button = MouseButtons.Left Then
                titlebar.Capture = False
                lbtitletext.Capture = False
                pnlicon.Capture = False
                pgtoplcorner.Capture = False
                pgtoprcorner.Capture = False
                Const WM_NCLBUTTONDOWN As Integer = &HA1S
                Const HTCAPTION As Integer = 2
                Dim msg As Message = _
                    Message.Create(Me.Handle, WM_NCLBUTTONDOWN, _
                        New IntPtr(HTCAPTION), IntPtr.Zero)
                Me.DefWndProc(msg)
            End If
            ShiftOSDesktop.log = ShiftOSDesktop.log & My.Computer.Clock.LocalTime & " User dragged " & Me.Name & " to " & Me.Location.ToString & Environment.NewLine
        End If
    End Sub

    Public Sub setupborders()
        If ShiftOSDesktop.boughtwindowborders = False Then
            pgleft.Hide()
            pgbottom.Hide()
            pgright.Hide()
            Me.Size = New Size(Me.Width - pgleft.Width - pgright.Width, Me.Height - pgbottom.Height)
        End If
    End Sub

    Private Sub closebutton_Click(sender As Object, e As EventArgs) Handles closebutton.Click
        Me.Close()
    End Sub

    Private Sub closebutton_MouseEnter(sender As Object, e As EventArgs) Handles closebutton.MouseEnter, closebutton.MouseUp
        closebutton.BackgroundImage = Skins.closebtnhover
    End Sub

    Private Sub closebutton_MouseLeave(sender As Object, e As EventArgs) Handles closebutton.MouseLeave
        closebutton.BackgroundImage = Skins.closebtn
    End Sub

    Private Sub closebutton_MouseDown(sender As Object, e As EventArgs) Handles closebutton.MouseDown
        closebutton.BackgroundImage = Skins.closebtnclick
    End Sub

    Private Sub minimizebutton_Click(sender As Object, e As EventArgs) Handles minimizebutton.Click
        ShiftOSDesktop.minimizeprogram(Me, False)
    End Sub

    'Old skinning system - No idea what this does
    ''Private Sub titlebar_MouseEnter(sender As Object, e As EventArgs) Handles titlebar.MouseEnter, titlebar.MouseUp, lbtitletext.MouseEnter, pnlicon.MouseEnter, closebutton.MouseEnter, rollupbutton.MouseEnter
    ''    If ShiftOSDesktop.skinimages(3) = ShiftOSDesktop.skinimages(4) Then  Else titlebar.BackgroundImage = ShiftOSDesktop.skintitlebar(1)
    ''End Sub

    'Private Sub titlebar_MouseLeave(sender As Object, e As EventArgs) Handles titlebar.MouseLeave, lbtitletext.MouseLeave, pnlicon.MouseLeave, closebutton.MouseLeave, rollupbutton.MouseLeave
    '    If ShiftOSDesktop.skinimages(3) = ShiftOSDesktop.skinimages(4) Then  Else titlebar.BackgroundImage = ShiftOSDesktop.skintitlebar(0)
    'End Sub

    Private Sub rollupbutton_Click(sender As Object, e As EventArgs) Handles rollupbutton.Click
        rollupanddown()
    End Sub

    Private Sub rollupbutton_MouseEnter(sender As Object, e As EventArgs) Handles rollupbutton.MouseEnter, rollupbutton.MouseUp
        rollupbutton.BackgroundImage = Skins.rollbtnhover
    End Sub

    Private Sub rollupbutton_MouseLeave(sender As Object, e As EventArgs) Handles rollupbutton.MouseLeave
        rollupbutton.BackgroundImage = Skins.rollbtn
    End Sub

    Private Sub rollupbutton_MouseDown(sender As Object, e As EventArgs) Handles rollupbutton.MouseDown
        rollupbutton.BackgroundImage = Skins.rollbtnclick
    End Sub

    Public Sub setuptitlebar()

        setupborders()

        If Me.Height = Me.titlebar.Height Then pgleft.Show() : pgbottom.Show() : pgright.Show() : Me.Height = rolldownsize : needtorollback = True
        pgleft.Width = Skins.borderwidth
        pgright.Width = Skins.borderwidth
        pgbottom.Height = Skins.borderwidth
        titlebar.Height = Skins.titlebarheight

        If justopened = True Then
            Me.Size = New Size(800, 600) 'put the default size of your window here
            Me.Size = New Size(Me.Width, Me.Height + Skins.titlebarheight - 30)
            Me.Size = New Size(Me.Width + Skins.borderwidth + Skins.borderwidth, Me.Height + Skins.borderwidth)
            oldbordersize = Skins.borderwidth
            oldtitlebarheight = Skins.titlebarheight
            justopened = False
        Else
            If Me.Visible = True Then
                'Me.Hide()
                Me.Size = New Size(Me.Width - (2 * oldbordersize) + (2 * Skins.borderwidth), (Me.Height - oldtitlebarheight - oldbordersize) + Skins.titlebarheight + Skins.borderwidth)
                'Me.Size = New Size(Me.Width - oldbordersize - oldbordersize, Me.Height - oldbordersize) 'Just put a little algebra in the first size setting and comment out the mess
                oldbordersize = Skins.borderwidth
                oldtitlebarheight = Skins.titlebarheight
                'Me.Size = New Size(Me.Width, Me.Height + Skins.titlebarheight - 30)
                'Me.Size = New Size(Me.Width + Skins. borderwidth + Skins. borderwidth, Me.Height + Skins. borderwidth)
                'rolldownsize = Me.Height
                If needtorollback = True Then Me.Height = titlebar.Height : pgleft.Hide() : pgbottom.Hide() : pgright.Hide()
                'Me.Show()
            End If
        End If

        If Skins.enablecorners = True Then
            pgtoplcorner.Show()
            pgtoprcorner.Show()
            pgtoprcorner.Width = Skins.titlebarcornerwidth
            pgtoplcorner.Width = Skins.titlebarcornerwidth
        Else
            pgtoplcorner.Hide()
            pgtoprcorner.Hide()
        End If

        If ShiftOSDesktop.boughttitlebar = False Then
            titlebar.Hide()
            Me.Size = New Size(Me.Width, Me.Size.Height - titlebar.Height)
        End If

        If ShiftOSDesktop.boughttitletext = False Then
            lbtitletext.Hide()
        Else
            lbtitletext.Font = New Font(Skins.titletextfontfamily, Skins.titletextfontsize, Skins.titletextfontstyle, GraphicsUnit.Point)
            lbtitletext.Text = ShiftOSDesktop.webbrowsername 'Remember to change to name of program!!!!
            lbtitletext.Show()
        End If

        If ShiftOSDesktop.boughtclosebutton = False Then
            closebutton.Hide()
        Else
            closebutton.BackColor = Skins.closebtncolour
            closebutton.Size = Skins.closebtnsize
            closebutton.Show()
        End If

        If ShiftOSDesktop.boughtrollupbutton = False Then
            rollupbutton.Hide()
        Else
            rollupbutton.BackColor = Skins.rollbtncolour
            rollupbutton.Size = Skins.rollbtnsize
            rollupbutton.Show()
        End If

        If ShiftOSDesktop.boughtminimizebutton = False Then
            minimizebutton.Hide()
        Else
            minimizebutton.BackColor = Skins.minbtncolour
            minimizebutton.Size = Skins.minbtnsize
            minimizebutton.Show()
        End If

        If ShiftOSDesktop.boughtwindowborders = True Then
            closebutton.Location = New Point(titlebar.Size.Width - Skins.closebtnfromside - closebutton.Size.Width, Skins.closebtnfromtop)
            rollupbutton.Location = New Point(titlebar.Size.Width - Skins.rollbtnfromside - rollupbutton.Size.Width, Skins.rollbtnfromtop)
            minimizebutton.Location = New Point(titlebar.Size.Width - Skins.minbtnfromside - minimizebutton.Size.Width, Skins.minbtnfromtop)
            Select Case Skins.titletextpos
                Case "Left"
                    lbtitletext.Location = New Point(Skins.titletextfromside, Skins.titletextfromtop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, Skins.titletextfromtop)
            End Select
            lbtitletext.ForeColor = Skins.titletextcolour
        Else
            closebutton.Location = New Point(titlebar.Size.Width - Skins.closebtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - closebutton.Size.Width, Skins.closebtnfromtop)
            rollupbutton.Location = New Point(titlebar.Size.Width - Skins.rollbtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - rollupbutton.Size.Width, Skins.rollbtnfromtop)
            minimizebutton.Location = New Point(titlebar.Size.Width - Skins.minbtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - minimizebutton.Size.Width, Skins.minbtnfromtop)
            Select Case Skins.titletextpos
                Case "Left"
                    lbtitletext.Location = New Point(Skins.titletextfromside + pgtoplcorner.Width, Skins.titletextfromtop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, Skins.titletextfromtop)
            End Select
            lbtitletext.ForeColor = Skins.titletextcolour
        End If

        'Change when Icon skinning complete
        If ShiftOSDesktop.boughtshiftneticon = True Then ' Change to program's icon
            pnlicon.Visible = True
            pnlicon.Location = New Point(Skins.titleiconfromside, Skins.titleiconfromtop)
            pnlicon.Size = New Size(ShiftOSDesktop.titlebariconsize, ShiftOSDesktop.titlebariconsize)
            pnlicon.Image = ShiftOSDesktop.webbrowsericontitlebar  'Replace with the correct icon for the program.
        End If

    End Sub

    Public Sub rollupanddown()
        If Me.Height = Me.titlebar.Height Then
            pgleft.Show()
            pgbottom.Show()
            pgright.Show()
            Me.Height = rolldownsize
            Me.MinimumSize = New Size(minimumsizewidth, minimumsizeheight)
        Else
            Me.MinimumSize = New Size(0, 0)
            pgleft.Hide()
            pgbottom.Hide()
            pgright.Hide()
            rolldownsize = Me.Height
            Me.Height = Me.titlebar.Height
        End If
    End Sub

    Public Sub resettitlebar()
        If ShiftOSDesktop.boughtwindowborders = True Then
            closebutton.Location = New Point(titlebar.Size.Width - Skins.closebtnfromside - closebutton.Size.Width, Skins.closebtnfromtop)
            rollupbutton.Location = New Point(titlebar.Size.Width - Skins.rollbtnfromside - rollupbutton.Size.Width, Skins.rollbtnfromtop)
            minimizebutton.Location = New Point(titlebar.Size.Width - Skins.minbtnfromside - minimizebutton.Size.Width, Skins.minbtnfromtop)
            Select Case Skins.titletextpos
                Case "Left"
                    lbtitletext.Location = New Point(Skins.titletextfromside, Skins.titletextfromtop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, Skins.titletextfromtop)
            End Select
            lbtitletext.ForeColor = Skins.titletextcolour
        Else
            closebutton.Location = New Point(titlebar.Size.Width - Skins.closebtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - closebutton.Size.Width, Skins.closebtnfromtop)
            rollupbutton.Location = New Point(titlebar.Size.Width - Skins.rollbtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - rollupbutton.Size.Width, Skins.rollbtnfromtop)
            minimizebutton.Location = New Point(titlebar.Size.Width - Skins.minbtnfromside - pgtoplcorner.Width - pgtoprcorner.Width - minimizebutton.Size.Width, Skins.minbtnfromtop)
            Select Case Skins.titletextpos
                Case "Left"
                    lbtitletext.Location = New Point(Skins.titletextfromside + pgtoplcorner.Width, Skins.titletextfromtop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, Skins.titletextfromtop)
            End Select
            lbtitletext.ForeColor = Skins.titletextcolour
        End If
    End Sub

    Private Sub pullside_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles pullside.Tick
        Me.Width = Cursor.Position.X - Me.Location.X
        resettitlebar()
        updatetabsizes()
    End Sub

    Private Sub pullbottom_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles pullbottom.Tick
        Me.Height = Cursor.Position.Y - Me.Location.Y
        resettitlebar()
        updatetabsizes()
    End Sub

    Private Sub pullbs_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles pullbs.Tick
        Me.Width = Cursor.Position.X - Me.Location.X
        Me.Height = Cursor.Position.Y - Me.Location.Y
        resettitlebar()
        updatetabsizes()
    End Sub

    'delete this for non-resizable windows
    Private Sub Rightpull_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgright.MouseDown
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullside.Start()
        End If
    End Sub

    Private Sub RightCursorOn_MouseDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles pgright.MouseEnter
        If ShiftOSDesktop.boughtresizablewindows = True Then
            Cursor = Cursors.SizeWE
        End If
    End Sub

    Private Sub bottomCursorOn_MouseDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles pgbottom.MouseEnter
        If ShiftOSDesktop.boughtresizablewindows = True Then
            Cursor = Cursors.SizeNS
        End If
    End Sub

    Private Sub CornerCursorOn_MouseDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles pgbottomrcorner.MouseEnter
        If ShiftOSDesktop.boughtresizablewindows = True Then
            Cursor = Cursors.SizeNWSE
        End If
    End Sub

    Private Sub SizeCursoroff_MouseDown(ByVal sender As Object, ByVal e As System.EventArgs) Handles pgright.MouseLeave, pgbottom.MouseLeave, pgbottomrcorner.MouseLeave
        If ShiftOSDesktop.boughtresizablewindows = True Then
            Cursor = Cursors.Default
        End If
    End Sub

    Private Sub rightpull_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgright.MouseUp
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullside.Stop()
        End If
    End Sub

    Private Sub bottompull_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgbottom.MouseDown
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullbottom.Start()
        End If
    End Sub

    Private Sub buttompull_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgbottom.MouseUp
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullbottom.Stop()
        End If
    End Sub

    Private Sub bspull_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgbottomrcorner.MouseDown
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullbs.Start()
        End If
    End Sub

    Private Sub bspull_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles pgbottomrcorner.MouseUp
        If ShiftOSDesktop.boughtresizablewindows = True Then
            pullbs.Stop()
        End If
    End Sub

    Public Sub setskin()
        'disposals
        closebutton.BackgroundImage = Nothing
        titlebar.BackgroundImage = Nothing
        rollupbutton.BackgroundImage = Nothing
        pgtoplcorner.BackgroundImage = Nothing
        pgtoprcorner.BackgroundImage = Nothing
        minimizebutton.BackgroundImage = Nothing
        'apply new skin
        If Skins.closebtn Is Nothing Then closebutton.BackColor = Skins.closebtncolour Else closebutton.BackgroundImage = Skins.closebtn
        closebutton.BackgroundImageLayout = Skins.closebtnlayout
        If Skins.titlebar Is Nothing Then titlebar.BackColor = Skins.titlebarcolour Else titlebar.BackgroundImage = Skins.titlebar
        titlebar.BackgroundImageLayout = Skins.titlebarlayout
        If Skins.rollbtn Is Nothing Then rollupbutton.BackColor = Skins.rollbtncolour Else rollupbutton.BackgroundImage = Skins.rollbtn
        rollupbutton.BackgroundImageLayout = Skins.rollbtnlayout
        If Skins.leftcorner Is Nothing Then pgtoplcorner.BackColor = Skins.leftcornercolour Else pgtoplcorner.BackgroundImage = Skins.leftcorner
        pgtoplcorner.BackgroundImageLayout = Skins.leftcornerlayout
        If Skins.rightcorner Is Nothing Then pgtoprcorner.BackColor = Skins.rightcornercolour Else pgtoprcorner.BackgroundImage = Skins.rightcorner
        pgtoprcorner.BackgroundImageLayout = Skins.rightcornerlayout
        If Skins.minbtn Is Nothing Then minimizebutton.BackColor = Skins.minbtncolour Else minimizebutton.BackgroundImage = Skins.minbtn
        minimizebutton.BackgroundImageLayout = Skins.minbtnlayout
        If Skins.borderleft Is Nothing Then pgleft.BackColor = Skins.borderleftcolour Else pgleft.BackgroundImage = Skins.borderleft
        pgleft.BackgroundImageLayout = Skins.borderleftlayout
        If Skins.borderright Is Nothing Then pgright.BackColor = Skins.borderrightcolour Else pgright.BackgroundImage = Skins.borderright
        pgleft.BackgroundImageLayout = Skins.borderrightlayout
        If Skins.borderbottom Is Nothing Then pgbottom.BackColor = Skins.borderbottomcolour Else pgbottom.BackgroundImage = Skins.borderbottom
        pgbottom.BackgroundImageLayout = Skins.borderbottomlayout
        If enablebordercorners = True Then
            If Skins.bottomleftcorner Is Nothing Then pgbottomlcorner.BackColor = Skins.bottomleftcornercolour Else pgbottomlcorner.BackgroundImage = Skins.bottomleftcorner
            pgbottomlcorner.BackgroundImageLayout = Skins.bottomleftcornerlayout
            If Skins.bottomrightcorner Is Nothing Then pgbottomrcorner.BackColor = Skins.bottomrightcornercolour Else pgbottomrcorner.BackgroundImage = Skins.bottomrightcorner
            pgbottomrcorner.BackgroundImageLayout = Skins.bottomrightcornerlayout
        Else
            pgbottomlcorner.BackColor = Skins.borderrightcolour
            pgbottomrcorner.BackColor = Skins.borderrightcolour
            pgbottomlcorner.BackgroundImage = Nothing
            pgbottomrcorner.BackgroundImage = Nothing
        End If

        'set bottom border corner size
        pgbottomlcorner.Size = New Size(Skins.borderwidth, Skins.borderwidth)
        pgbottomrcorner.Size = New Size(Skins.borderwidth, Skins.borderwidth)
        pgbottomlcorner.Location = New Point(0, Me.Height - Skins.borderwidth)
        pgbottomrcorner.Location = New Point(Me.Width, Me.Height - Skins.borderwidth)

        Me.TransparencyKey = ShiftOSDesktop.globaltransparencycolour
    End Sub

    Private Sub Clock_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
        ShiftOSDesktop.programsopen = ShiftOSDesktop.programsopen - 1
        Me.Hide()
        ShiftOSDesktop.setuppanelbuttons()
    End Sub

    'end of general setup
#End Region

    Dim currenttab As Integer = 1
    Dim oldlocationtxt As String

    Private Sub txtlocation_KeyDown(sender As Object, e As KeyEventArgs) Handles txtlocation.KeyDown
        If e.KeyCode = Keys.Enter Then
            Select Case currenttab
                Case 1
                    If txtlocation.Text.Contains(".") Then webwindowt1.Navigate(txtlocation.Text) Else webwindowt1.Navigate("http://www.google.com/search?q=" & txtlocation.Text)
                Case 2
                    If txtlocation.Text.Contains(".") Then webwindowt2.Navigate(txtlocation.Text) Else webwindowt2.Navigate("http://www.google.com/search?q=" & txtlocation.Text)
                Case 3
                    If txtlocation.Text.Contains(".") Then webwindowt3.Navigate(txtlocation.Text) Else webwindowt3.Navigate("http://www.google.com/search?q=" & txtlocation.Text)
                Case 4
                    If txtlocation.Text.Contains(".") Then webwindowt4.Navigate(txtlocation.Text) Else webwindowt4.Navigate("http://www.google.com/search?q=" & txtlocation.Text)
            End Select
        End If
    End Sub

    Private Sub webwindowt1_Navigated(sender As Object, e As WebBrowserNavigatedEventArgs) Handles webwindowt1.Navigated
        updatetitles()
        txtlocation.Text = webwindowt1.Url.ToString
    End Sub
    Private Sub webwindowt2_Navigated(sender As Object, e As WebBrowserNavigatedEventArgs) Handles webwindowt2.Navigated
        updatetitles()
        txtlocation.Text = webwindowt1.Url.ToString
    End Sub
    Private Sub webwindowt3_Navigated(sender As Object, e As WebBrowserNavigatedEventArgs) Handles webwindowt3.Navigated
        updatetitles()
        txtlocation.Text = webwindowt1.Url.ToString
    End Sub
    Private Sub webwindowt4_Navigated(sender As Object, e As WebBrowserNavigatedEventArgs) Handles webwindowt4.Navigated
        updatetitles()
        txtlocation.Text = webwindowt1.Url.ToString
    End Sub

    Private Sub updatetitles()
        Select Case currenttab
            Case 1
                If Not webwindowt1.DocumentTitle = "" Then lbltab1.Text = webwindowt1.DocumentTitle
                If webwindowt1.DocumentTitle = "" Then lbtitletext.Text = ShiftOSDesktop.webbrowsername Else lbtitletext.Text = ShiftOSDesktop.webbrowsername & " - " & webwindowt1.DocumentTitle
                centretitletext()
                pnltab1.BackColor = Color.FromName("ControlLight")
                pnltab2.BackColor = Color.White
                pnltab3.BackColor = Color.White
                pnltab4.BackColor = Color.White
            Case 2
                If Not webwindowt2.DocumentTitle = "" Then lbltab2.Text = webwindowt2.DocumentTitle
                If webwindowt2.DocumentTitle = "" Then lbtitletext.Text = ShiftOSDesktop.webbrowsername Else lbtitletext.Text = ShiftOSDesktop.webbrowsername & " - " & webwindowt2.DocumentTitle
                centretitletext()
                pnltab2.BackColor = Color.FromName("ControlLight")
                pnltab1.BackColor = Color.White
                pnltab3.BackColor = Color.White
                pnltab4.BackColor = Color.White
            Case 3
                If Not webwindowt3.DocumentTitle = "" Then lbltab3.Text = webwindowt3.DocumentTitle
                If webwindowt3.DocumentTitle = "" Then lbtitletext.Text = ShiftOSDesktop.webbrowsername Else lbtitletext.Text = ShiftOSDesktop.webbrowsername & " - " & webwindowt3.DocumentTitle
                centretitletext()
                pnltab3.BackColor = Color.FromName("ControlLight")
                pnltab2.BackColor = Color.White
                pnltab1.BackColor = Color.White
                pnltab4.BackColor = Color.White
            Case 4
                If Not webwindowt4.DocumentTitle = "" Then lbltab4.Text = webwindowt4.DocumentTitle
                If webwindowt4.DocumentTitle = "" Then lbtitletext.Text = ShiftOSDesktop.webbrowsername Else lbtitletext.Text = ShiftOSDesktop.webbrowsername & " - " & webwindowt4.DocumentTitle
                centretitletext()
                pnltab4.BackColor = Color.FromName("ControlLight")
                pnltab2.BackColor = Color.White
                pnltab3.BackColor = Color.White
                pnltab1.BackColor = Color.White
        End Select
    End Sub

    Private Sub centretitletext()
        If ShiftOSDesktop.boughttitletext = False Then
            lbtitletext.Hide()
        Else
            lbtitletext.Font = New Font(ShiftOSDesktop.titletextfont, ShiftOSDesktop.titletextsize, ShiftOSDesktop.titletextstyle)
            lbtitletext.Show()
        End If

        If ShiftOSDesktop.boughtwindowborders = True Then
            closebutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.closebuttonside - closebutton.Size.Width, ShiftOSDesktop.closebuttontop)
            rollupbutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.rollupbuttonside - rollupbutton.Size.Width, ShiftOSDesktop.rollupbuttontop)
            minimizebutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.minimizebuttonside - minimizebutton.Size.Width, ShiftOSDesktop.minimizebuttontop)
            Select Case ShiftOSDesktop.titletextposition
                Case "Left"
                    lbtitletext.Location = New Point(ShiftOSDesktop.titletextside, ShiftOSDesktop.titletexttop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, ShiftOSDesktop.titletexttop)
            End Select
            lbtitletext.ForeColor = ShiftOSDesktop.titletextcolour
        Else
            closebutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.closebuttonside - pgtoplcorner.Width - pgtoprcorner.Width - closebutton.Size.Width, ShiftOSDesktop.closebuttontop)
            rollupbutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.rollupbuttonside - pgtoplcorner.Width - pgtoprcorner.Width - rollupbutton.Size.Width, ShiftOSDesktop.rollupbuttontop)
            minimizebutton.Location = New Point(titlebar.Size.Width - ShiftOSDesktop.minimizebuttonside - pgtoplcorner.Width - pgtoprcorner.Width - minimizebutton.Size.Width, ShiftOSDesktop.minimizebuttontop)
            Select Case ShiftOSDesktop.titletextposition
                Case "Left"
                    lbtitletext.Location = New Point(ShiftOSDesktop.titletextside + pgtoplcorner.Width, ShiftOSDesktop.titletexttop)
                Case "Centre"
                    lbtitletext.Location = New Point((titlebar.Width / 2) - lbtitletext.Width / 2, ShiftOSDesktop.titletexttop)
            End Select
            lbtitletext.ForeColor = ShiftOSDesktop.titletextcolour
        End If
    End Sub

    Private Sub btnback_Click(sender As Object, e As EventArgs) Handles btnback.Click
        Select Case currenttab
            Case 1
                If webwindowt1.CanGoBack = True Then webwindowt1.GoBack()
            Case 2
                If webwindowt2.CanGoBack = True Then webwindowt2.GoBack()
            Case 3
                If webwindowt3.CanGoBack = True Then webwindowt3.GoBack()
            Case 4
                If webwindowt4.CanGoBack = True Then webwindowt4.GoBack()
        End Select
    End Sub

    Private Sub btnforward_Click(sender As Object, e As EventArgs) Handles btnforward.Click
        Select Case currenttab
            Case 1
                If webwindowt1.CanGoForward = True Then webwindowt1.GoForward()
            Case 2
                If webwindowt2.CanGoForward = True Then webwindowt2.GoForward()
            Case 3
                If webwindowt3.CanGoForward = True Then webwindowt3.GoForward()
            Case 4
                If webwindowt4.CanGoForward = True Then webwindowt4.GoForward()
        End Select
    End Sub

    Private Sub gohome()
        Select Case currenttab
            Case 1
                webwindowt1.Navigate(ShiftOSDesktop.webbrowserhomepage)
                centretitletext()
            Case 2
                webwindowt2.Navigate(ShiftOSDesktop.webbrowserhomepage)
                centretitletext()
            Case 3
                webwindowt3.Navigate(ShiftOSDesktop.webbrowserhomepage)
                centretitletext()
            Case 4
                webwindowt4.Navigate(ShiftOSDesktop.webbrowserhomepage)
                centretitletext()
        End Select
        
    End Sub

    Private Sub btnhome_Click(sender As Object, e As EventArgs) Handles btnhome.Click
        gohome()
    End Sub

    Private Sub txtlocation_MouseClick(sender As Object, e As MouseEventArgs) Handles txtlocation.MouseClick
        txtlocation.SelectAll()
    End Sub

    Private Sub txtlocation_mouseenter(sender As Object, e As EventArgs) Handles txtlocation.GotFocus
        oldlocationtxt = txtlocation.Text
        txtlocation.Text = ""
    End Sub
    Private Sub txtlocation_mouseleave(sender As Object, e As EventArgs) Handles txtlocation.LostFocus
        If txtlocation.Text = "" Then txtlocation.Text = oldlocationtxt
    End Sub

    'switching tabs
    Private Sub pnltab1_Click(sender As Object, e As EventArgs) Handles pnltab1.Click
        currenttab = 1
        webwindowt1.Dock = DockStyle.Fill
        webwindowt1.BringToFront()
        updatetitles()
        txtlocation.Text = "Search or Enter an address"
        If webwindowt1.DocumentTitle = "" Then lbtitletext.Text = "Web Browser" Else lbtitletext.Text = "Web Browser - " & webwindowt1.DocumentTitle
    End Sub

    Private Sub pnltab2_Click(sender As Object, e As EventArgs) Handles pnltab2.Click
        currenttab = 2
        webwindowt2.Dock = DockStyle.Fill
        webwindowt2.BringToFront()
        updatetitles()
        txtlocation.Text = "Search or Enter an address"
        If webwindowt2.DocumentTitle = "" Then lbtitletext.Text = "Web Browser" Else lbtitletext.Text = "Web Browser - " & webwindowt2.DocumentTitle
    End Sub

    Private Sub pnltab3_Click(sender As Object, e As EventArgs) Handles pnltab3.Click
        currenttab = 3
        webwindowt3.Dock = DockStyle.Fill
        webwindowt3.BringToFront()
        updatetitles()
        txtlocation.Text = "Search or Enter an address"
        If webwindowt3.DocumentTitle = "" Then lbtitletext.Text = "Web Browser" Else lbtitletext.Text = "Web Browser - " & webwindowt3.DocumentTitle
    End Sub

    Private Sub pnltab4_Click(sender As Object, e As EventArgs) Handles pnltab4.Click
        currenttab = 4
        webwindowt4.Dock = DockStyle.Fill
        webwindowt4.BringToFront()
        updatetitles()
        txtlocation.Text = "Search or Enter an address"
        If webwindowt4.DocumentTitle = "" Then lbtitletext.Text = "Web Browser" Else lbtitletext.Text = "Web Browser - " & webwindowt4.DocumentTitle
    End Sub

    Private Sub webloading(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserProgressChangedEventArgs) Handles webwindowt1.ProgressChanged, webwindowt2.ProgressChanged, webwindowt3.ProgressChanged, webwindowt4.ProgressChanged
        Try
            If e.MaximumProgress > 0L AndAlso e.CurrentProgress > 0L Then
                siteloadprogress.Value = CInt(Math.Round((100 * e.CurrentProgress / e.MaximumProgress)))
            ElseIf e.MaximumProgress = 0L AndAlso e.CurrentProgress = 0L Then
                siteloadprogress.Value = 0
            End If
        Catch ex As Exception
            siteloadprogress.Value = 0
        End Try
    End Sub

    Private Sub updatetabsizes()
        Dim totalsize As Integer = Me.Width - pgleft.Width - pgright.Width - 10
        pnltab1.Size = New Size(totalsize / 4, pnltab1.Height)
        pnltab2.Size = New Size(totalsize / 4, pnltab2.Height)
        pnltab3.Size = New Size(totalsize / 4, pnltab3.Height)
        pnltab4.Size = New Size(totalsize / 4, pnltab4.Height)
        pnltab2.Location = New Point(pgleft.Width + 5 + pnltab1.Width, pnltab2.Location.Y)
        pnltab3.Location = New Point(pgleft.Width + 5 + pnltab1.Width + pnltab2.Width, pnltab3.Location.Y)
        pnltab4.Location = New Point(pgleft.Width + 5 + pnltab1.Width + pnltab2.Width + pnltab3.Width, pnltab4.Location.Y)
    End Sub
End Class