/*/

/ /  Author: Jeremy Falcon

/ /    Date: November 08, 2001

/ / Version: 1.4

/*/



/*/ THIS FILE CONTAINS FUNCTIONS THAT WILL WRAP THE POP-UP PROCESS /*/



// this variable will hold the window obect

// we only allow one pop-up at a time

var popup = null;



/*/

/ / PURPOSE:

/ /		To create and center a pop-up window.

/ /

/ / COMMENTS:

/ /		It will replace to old pop-up if called

/ / 	without calling DestroyWnd() first..

/*/



function CreateWnd (file, width, height, resize)

{

	var doCenter = false;



	if((popup == null) || popup.closed)

	{

		attribs = "";



		/*/ there's no popup displayed /*/



		// assemble some params

		if(resize) size = "yes"; else size = "no";



		/*/

		/ / We want to center the pop-up; however, to do this we need to know the

		/ / screen size.  The screen object is only available in JavaScript 1.2 and

		/ / later (w/o Java and/or CGI helping), so we must check for the existance

		/ / of it in the window object to determine if we can get the screen size.

		/ /

		/ / It is safe to assume the window object exists because it was implemented

		/ / in the very first version of JavaScript (that's 1.0).

		/*/

		for(var item in window)

			{ if(item == "screen") { doCenter = true; break; } }



		if(doCenter)

		{	/*/ center the window /*/



			// if the screen is smaller than the window, override the resize setting

			if(screen.width <= width || screen.height <= height) size = "yes";



			WndTop  = (screen.height - height) / 2;

			WndLeft = (screen.width  - width)  / 2;



			// collect the attributes

			attribs = "width=" + width + ",height=" + height + ",resizable=" + size + ",scrollbars=" + size + "," + 

			"status=no,toolbar=no,directories=no,menubar=no,location=no,top=" + WndTop + ",left=" + WndLeft;

		}

		else

		{

			/*/

			/ / There is still one last thing we can do for JavaScrpt 1.1

			/ / users in Netscape.  Using the AWT in Java we can pull the

			/ / information we need, provided it is enabled.

			/*/

			if(navigator.appName=="Netscape" && navigator.javaEnabled())

			{	/*/ center the window /*/



				var toolkit = java.awt.Toolkit.getDefaultToolkit();

				var screen_size = toolkit.getScreenSize();



				// if the screen is smaller than the window, override the resize setting

				if(screen_size.width <= width || screen_size.height <= height) size = "yes";



				WndTop  = (screen_size.height - height) / 2;

				WndLeft = (screen_size.width  - width)  / 2;



				// collect the attributes

				attribs = "width=" + width + ",height=" + height + ",resizable=" + size + ",scrollbars=" + size + "," + 

				"status=no,toolbar=no,directories=no,menubar=no,location=no,top=" + WndTop + ",left=" + WndLeft;

			}

			else

			{	/*/ use the default window position /*/



				// override the resize setting

				size = "yes";



				// collect the attributes

				attribs = "width=" + width + ",height=" + height + ",resizable=" + size + ",scrollbars=" + size + "," + 

				"status=no,toolbar=no,directories=no,menubar=no,location=no";

			}

		}



		// create the window

		popup = open(file, "", attribs);

	}

	else

	{

		// destory the current window

		DestroyWnd();

		// recurse, just once, to display the new window

		CreateWnd(file, width, height, resize);

	}

}



/*/

/ / PURPOSE:

/ /		To destroy the pop-up window.

/ /

/ / COMMENTS:

/ /		This is available if wish to destroy

/ / 	the pop-up window manually.

/*/



function DestroyWnd ()

{

	// close the current window

	if(popup != null)

	{

		popup.close();

		popup = null;

	}

}