(function($){

	$.fn.popupWindow = function(instanceSettings){

		var myWin = null;

		return this.each(function(){

		$(this).click(function(){

		$.fn.popupWindow.defaultSettings = {

			centerBrowser:0, // center window over browser window? {1 (YES) or 0 (NO)}. overrides top and left

			centerScreen:0, // center window over entire screen? {1 (YES) or 0 (NO)}. overrides top and left

			height:500, // sets the height in pixels of the window.

			left:0, // left position when the window appears.

			location:0, // determines whether the address bar is displayed {1 (YES) or 0 (NO)}.

			menubar:0, // determines whether the menu bar is displayed {1 (YES) or 0 (NO)}.

			resizable:0, // whether the window can be resized {1 (YES) or 0 (NO)}. Can also be overloaded using resizable.

			scrollbars:0, // determines whether scrollbars appear on the window {1 (YES) or 0 (NO)}.

			status:0, // whether a status line appears at the bottom of the window {1 (YES) or 0 (NO)}.

			width:500, // sets the width in pixels of the window.

			windowName:null, // name of window set from the name attribute of the element that invokes the click

			windowURL:null, // url used for the popup

			top:0, // top position when the window appears.

			toolbar:0 // determines whether a toolbar (includes the forward and back buttons) is displayed {1 (YES) or 0 (NO)}.

		};

		settings = $.extend({}, $.fn.popupWindow.defaultSettings, instanceSettings || {});

		var windowFeatures =    'height=' + settings.height +

								',width=' + settings.width +

								',toolbar=' + settings.toolbar +

								',scrollbars=' + settings.scrollbars +

								',status=' + settings.status + 

								',resizable=' + settings.resizable +

								',location=' + settings.location +

								',menuBar=' + settings.menubar;

				settings.windowName = this.name || settings.windowName;

				settings.windowURL = this.href || settings.windowURL;

				var centeredY,centeredX;

				if(settings.centerBrowser){

					if ($.browser.msie) {//hacked together for IE browsers

						centeredY = (window.screenTop - 120) + ((((document.documentElement.clientHeight + 120)/2) - (settings.height/2)));

						centeredX = window.screenLeft + ((((document.body.offsetWidth + 20)/2) - (settings.width/2)));

					}else{

						centeredY = window.screenY + (((window.outerHeight/2) - (settings.height/2)));

						centeredX = window.screenX + (((window.outerWidth/2) - (settings.width/2)));

					}

					if (myWin == null || myWin.closed) {

					  myWin = window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + centeredX +',top=' + centeredY);

					}

				}else if(settings.centerScreen){

					centeredY = (screen.height - settings.height)/2;

					centeredX = (screen.width - settings.width)/2;

					if (myWin == null || myWin.closed) {

					  myWin = window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + centeredX +',top=' + centeredY);

				  }

				}else{

				  if (myWin == null || myWin.closed) {

					  myWin = window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + settings.left +',top=' + settings.top);	

					}

				}

				myWin.focus();

				return false;

			});

		});	

	};

})(jQuery);