/// <summary>The iPopUp Control: an easy way to create PopUps
 /// without writing the Client
 /// Javascript Code. </summary>
 public class iPopUp : WebControl 
 {
        /// <summary>Enables or Disables the Scrollbars in the
        /// opening PopUp</summary>
        public bool Scrollbars = false;


        /// <summary>Enables or Disables the Menubar in the
        /// opening PopUp</summary>
        public bool Menubar = false;


        /// <summary>Enables or Disables the Locationbar in the
        /// opening PopUp</summary>
        public bool Locationbar = false;


        /// <summary>Enables or Disables the possibility to
        /// Resize the opening PopUp</summary>
        public bool Resizeable= false;


        /// <summary>Enables or Disables the Statusbars in the
        /// opening PopUp</summary>
        public bool Statusbar = false;


        /// <summary>Toggles Fullscreen mode on or off. Maybe
        /// unsupported in some Browsers.</summary>
        public bool Fullscreen = false;


        /// <summary>Gets or Sets the Top (y) Position of the
        /// new PopUp</summary>
        public Unit Top = new Unit();


        /// <summary>Gets or Sets the Left (x) Position of the
        /// new PopUp</summary>
        public Unit Left = new Unit();


        private string text = "";


        /// <summary>Gets or Sets the Text which is displayed as
        /// an Link to open the PopUp</summary>
        public string Text 
        {
                get { return text; }
                set { text = value; }
        }


        /// <summary>Gets or Sets the URL to the Website which
        /// will be opende inside the new PopUp</summary>
        public string NavigateUrl 
        {
                get 
                {
                        object obj = ViewState["NavigateUrl"];
                        return (obj == null) ? String.Empty :
                                (string)obj;
                }
                set 
                {
                        ViewState["NavigateUrl"] = value;
                }        
        }


        /// <summary>Gets or Sets the URL to an Image which will
        /// be displayed as an Link to open the PopUp</summary>
        public string ImageUrl = "";


        /// <summary>Gets or Sets the Alternating Text (to the
        /// ImageUrl Property) which will be displayed if 
        /// Images are disabled in the Browser.</summary>
        public string AlternateText = "";


        /// <summary>Used to create the Control</summary>
        protected override void OnLoad (EventArgs e) 
        {
                StringBuilder Options = new StringBuilder();
                if (Fullscreen) 
                        Options.Append("fullscreen = yes, "); 
                else Options.Append("fullscreen = no, ");


                if (Scrollbars) 
                        Options.Append("scrollbars = yes, "); 
                else Options.Append("scrollbars = no, ");


                if (Menubar)
                        Options.Append("menubar = yes, ");
                else 
                        Options.Append("menubar = no, ");


                if (Locationbar) 
                        Options.Append("locationbar = yes, "); 
                else 
                        Options.Append("locationbar = no, ");


                if (Resizeable) 
                        Options.Append("resizeable = yes, "); 
                else 
                        Options.Append("resizeable = no, ");


                if (Statusbar) 
                        Options.Append("status = yes ");
                else 
                        Options.Append("status = no ");


                if (!Left.IsEmpty)
                        Options.Append("left = " + Left.ToString() + ", ");


                if (!Top.IsEmpty)
                        Options.Append("top = " + Top.ToString() + ", ");


                if (!Width.IsEmpty)
                        Options.Append("width = " + Width.ToString() + ", ");


                if (!Height.IsEmpty)
                        Options.Append("height = " + Height.ToString());


                StringBuilder myString = new
                        StringBuilder("<script language=\"Javascript\">");


                myString.Append("function PopUp_" + 
                        this.ClientID + "() {");


                myString.Append(" window.open(\"" + 
                        ViewState["NavigateUrl"] + "\",\"Bildermanager\", \"" +
                        Options.ToString() + "\")");


                myString.Append(" } </script");
                myString.Append(">");


                Page.RegisterClientScriptBlock("PopUp_" +
                        this.ClientID, myString.ToString());


        }


        /// <summary>Used to create the Control</summary>
        protected override void Render( HtmlTextWriter writer) 
        {
                if (ImageUrl != string.Empty) 
                {
                        text = "<img src=\"" + ImageUrl + "\\" +
                                " alt=\"" + AlternateText + "\" border=\"0\">" + text; 
                }
                writer.Write("<a target=\"_self\" href=\"javascript:PopUp_"
                        + this.ClientID + "()\">" + text + "</a>");
        }
 }