jQuery.fn.popupWindow = function(instanceSettings) {
		
		return this.each(function() {
		
			var self = $(this);
		
			$(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)));
					}
					// window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + centeredX +',top=' + centeredY).focus();
					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;
					// window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + centeredX +',top=' + centeredY).focus();
					window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + centeredX +',top=' + centeredY);
				} else {
					// window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + settings.left +',top=' + settings.top).focus();
					window.open(settings.windowURL, settings.windowName, windowFeatures+',left=' + settings.left +',top=' + settings.top);
				}
				return false;
			});
		});	
	};